US Pat. No. 9,464,857

SOUND SUPPRESSOR FOR A FIREARM

SIG SAUER, INC., Newingt...

1. A sound suppressor for a firearm, the sound suppressor comprising:
a socket portion configured to receive at least one of a flash suppressor and a firearm muzzle, the socket portion including
a wrench flat; and

a latching mechanism pivotally mounted on the socket portion and configured to be brought into physical register with at least
one of a flash suppressor and a firearm muzzle received by the socket portion, wherein application of a wrench to the wrench
flat causes the latching mechanism to be taken out of physical register with at least one of the flash suppressor and the
firearm muzzle.

US Pat. No. 9,404,704

MUZZLE FLASH SUPPRESSOR

Sig Sauer, Inc., Newingt...

1. A flash suppressor comprising:
a socket portion configured to couple with a muzzle of a projectile weapon, wherein the socket portion has an opening formed
therethrough, the opening commensurate in size with an inner bore of the muzzle;

a plurality of prongs extending from the socket portion, wherein the prongs are arranged such that an interior space surrounded
by the prongs provides an exit cavity, and wherein a first end of the exit cavity transitions to the opening of the socket
portion and a second end of the exit cavity opens to allow passage of a projectile out of the flash suppressor, the exit cavity
exhibiting angled expansion from the first end thereof to the second end thereof; and

a plurality of multi-radius surfaces, each multi-radius surface formed between a neighboring pair of the plurality of prongs,
wherein each multi-radius surface transitions from the exit cavity to an exterior of the flash suppressor.

US Pat. No. 9,212,865

HINGED HAND GUARD

Sig Sauer, Inc., Newingt...

18. A firearm comprising:
a barrel having a longitudinal axis, a right side and a left side;
a barrel nut aligned with the longitudinal axis of the barrel; and
a hand guard comprising:
a first hand guard component; and
a second hand guard component pivotally connected to the first hand guard component about an axis parallel to the longitudinal
axis of the barrel, such that in a mounted state the second hand guard component is substantially disposed on the right side
of the barrel and the first component and the second component, together, encircle at least a portion of the barrel, and an
inner surface of the hand guard is in contact with the barrel nut when in a mounted state.

US Pat. No. 9,423,195

CHARGING HANDLE

SIG SAUER, INC., Newingt...

1. A charging handle for a firearm, the charging handle comprising:
a hand pull at a proximal portion of said charging handle;
an elongate body that extends distally away from said hand pull toward a distal portion of said charging handle;
a latch configured to selectively latch said charging handle in a forward position on the firearm;
a latch release configured to actuate said latch to release said charging handle from the forward position on the firearm
enabling said charging handle to be pulled rearward in relation to the firearm from the forward position;

a first abutment positioned on a distal portion of said elongate body and that faces proximally toward said hand pull when
said charging handle is assembled to the firearm with said latch release on a left-hand side of the firearm, defining a first
position of the charging handle; and

a second abutment positioned on said distal portion of said elongate body and that faces proximally toward said hand pull
when said charging handle is assembled to the firearm with said latch release positioned on a right-hand side of the firearm,
defining a second position of the charging handle,

wherein the first position of the charging handle and the second position of the charging handle are separated by a 180° rotation
of the charging handle and the first abutment and the second abutment are each configured to interact with a feature of a
bolt group of the firearm.

US Pat. No. 9,322,615

LOW PROFILE FOLDING FRONT AND REAR FIREARM SIGHTS

Sig Sauer, Inc., Newingt...

1. A firearm sight assembly comprising:
a base configured to attach to a firearm rail;
an arm pivotally coupled to the base using a spring-loaded pivot pin;
a sight attached to the arm;
a linking pin connecting the pivot pin and the arm; and
a bushing non-permanently attached to the base, wherein the bushing includes at least one slot;
wherein the spring-loaded pivot pin forces the linking pin into the at least one bushing slot when the arm is in one of a
deployed and folded position.

US Pat. No. 9,303,936

FRAME ASSEMBLY FOR STRIKER-FIRED PISTOL

Sig Sauer, Inc., Newingt...

1. A frame assembly for a striker-fired pistol, comprising:
a takedown actuation lever;
a takedown safety lever operatively coupled to the takedown actuation lever, the takedown safety lever configured to be moveable
with respect to a frame of the pistol between a shooting position and a takedown position responsive to manual movement of
the takedown actuation lever; and

a sear tab extending laterally from the takedown safety lever, the sear tab configured to engage with a sear of the pistol
and, in response to movement of the takedown safety lever, disengage the sear from a striker pin of the pistol.

US Pat. No. 9,151,558

SEAR TRIP BAR FOR A FIREARM

SIG SAUER, INC., Newingt...

1. A sear trip bar for a firearm, the sear trip bar comprising:
an elongate body portion having a forward end and an opposing rearward end;
a first hooked portion extending upwardly away from the forward end of the body portion and configured to be operatively interfaced
with a bolt carrier of the firearm; and

a second hooked portion extending laterally away from the rearward end of the body portion and configured to be operatively
interfaced with an automatic sear of the firearm.

US Pat. No. 9,389,032

UPPER RECEIVER WEAR SURFACE

Sig Sauer, Inc., Newingt...

1. A firearm receiver comprising:
an upper receiver frame;
an inner surface of the upper receiver frame contoured to define a component housing cavity within the upper receiver frame
configured to house a shaft portion of a charging handle;

an outer surface of the upper receiver frame contoured to define at least one wear surface cavity penetrating a portion of
the upper receiver frame; and

at least one wear surface pin secured within the at least one wear surface cavity such that an exposed portion of the wear
surface pin is positioned to engage with a charging handle latch.

US Pat. No. 9,212,858

NON-DETACHABLE MAGAZINE

Sig Sauer, Inc., Newingt...

1. A non-detachable magazine assembly for a firearm having a lower receiver and an upper receiver, the magazine assembly comprising:
a magazine body having a feed end, a base end and an outer surface defining a right side, a left side, a front side and a
back side;

a hinge pin retained in a receiver of a firearm; and
at least one arm pivotally connecting the magazine body to the hinge pin, wherein the hinge pin attaches the lower receiver
to the upper receiver.

US Pat. No. 9,448,023

FIREARM SAFETY ASSEMBLY INCLUDING A LEVER DETENT SPRING

Sig Sauer, Inc., Newingt...

1. A firearm safety assembly comprising:
a first lever pivotally coupled to a frame at a first frame pivot point; and
a detent spring pivotally coupled to the frame at a second frame pivot point and in contact with the first lever at an assembly
pivot point;

wherein the detent spring is under compression, the compression force in a direction substantially aligned with a major plane
of the frame; and

wherein the detent spring is configured to pivot about the assembly pivot point relative to the first lever.

US Pat. No. 10,030,929

INTEGRAL ECCENTRIC FIREARM SILENCER

Sig Sauer, Inc., Newingt...

1. An eccentric silencer for a firearm comprising:an elongate body having a projectile entry end, a projectile exit end opposite the projectile entry end, a bore extending through the projectile entry end and the projectile exit end for conducting a projectile therethrough, and a longitudinal axis passing through the bore, the body being configured to be coupled to a barrel of the firearm at the projectile entry end;
the elongate body further having a propellant gas expansion chamber disposed adjacent to, and in fluid communication with, the bore for receiving a propellant gas;
the elongate body further having a capsule container mounted eccentrically adjacent to, and in fluid communication with, the propellant gas expansion chamber; and
a capsule installed in the capsule container, the capsule being sealed and containing at least one of an amorphous solid and a liquid.

US Pat. No. 9,383,178

HOLLOW POINT BULLET AND METHOD OF MANUFACTURING SAME

Sig Sauer, Inc., Newingt...

1. A bullet comprising:
a center axis;
a substantially cylindrical core comprising:
a nose portion having a conical recess formed therein; the core having a cavity formed therein, the cavity extending along
the center axis and in communication with the conical recess, the cavity having a cross-section shape defined by a plurality
of points spaced equidistantly around a circumference of an imaginary circle; and

a plurality of stress risers formed in the core, each stress riser extending radially outward from the center axis in coincidence
with a point of the cross-section shape; and

a jacket surrounding the core, the jacket comprising:
a base;
a sidewall comprising a top edge, an inner surface and an outer surface, the inner surface of the sidewall comprising a plurality
of v-shaped channels formed therein, each v-shaped channel being adjacent to one of the stress risers and extending longitudinally
from the top edge such that a distance from the inner surface of the sidewall to the outer surface of the sidewall increases
as a function of distance from the top edge toward the base.

US Pat. No. 9,470,480

WEAPON ACCESSORY MOUNT

Sig Sauer, Inc., Newingt...

1. A mounting apparatus comprising:
a base plate having a side member parallel to a longitudinal axis of the base plate, the base plate being configured to be
coupled to an under barrel of a firearm;

a side element detachably coupled to the side member of the base plate such that the side element is positioned adjacent to
a movable slide mechanism of the firearm while the base plate is coupled to the under barrel; and

a first tongue disposed on the side member of the base plate and a second tongue disposed on the side element, wherein the
first tongue and the second tongue are each configured to engage a complementary groove formed on one side of the under barrel.

US Pat. No. 9,360,272

ADJUSTABLE BUTTSTOCK CLAMP

SIG SAUER, INC., Newingt...

11. A cam lever comprising:
an eccentric camming portion configured to pivot around a cam axis;
an eccentric camming surface on the eccentric camming portion configured to apply a clamping force on end portions of a band
clamp when the eccentric camming portion is in a locked position;

a cam lever handle extending from the eccentric camming portion; and
a locking feature extending from the eccentric camming portion perpendicular to the cam axis, and wherein a portion of the
locking feature is configured to pass within an inner circumference of the band clamp when the eccentric camming portion is
in a locked position, wherein dimensions of the locking feature are determined based on at least one of width and depth of
a groove of a grooved extension shaft of a buttstock shaft.

US Pat. No. 9,086,247

HINGE PIN CONNECTOR

Sig Sauer, Inc., Newingt...

1. A hinge pin connector for a firearm, the hinge pin connector comprising:
a shelf member integral with and extending from an outer surface of a firearm receiver and positioned on a first side of an
ejection port in a direction parallel to a firing axis of the firearm;

a containing member spaced apart from the shelf member and positioned on the first side of the ejection port in the direction
parallel to the firing axis, the containing member integral with the receiver and extending from the outer surface of the
receiver to define a longitudinal slot between the containing member and the receiver surface, the slot aligned with the axis
of the firearm and having a cross dimension in at least one direction that is approximately equal to the diameter of a hinge
pin to be secured in the connector;

an insertion area positioned between the shelf member and the containing member and positioned on the first side of the ejection
port in the direction parallel to the firing axis, the insertion area constructed and arranged to receive the hinge pin in
an angled orientation with respect to the axis of the firearm and to allow pivoting of the hinge pin to a position substantially
parallel with the axis of the firearm where the shelf member, the containing member, and the surface of the receiver block
lateral movement of the hinge pin away from the receiver; and

a receptacle positioned on a second side of the ejection port, opposite to the first side in the direction parallel to the
firing axis, and constructed and arranged to receive a portion of the hinge pin and to block the hinge pin from pivoting away
from the firearm receiver.

US Pat. No. 9,151,557

AUTOMATIC SEAR ASSEMBLY FOR A RIFLE

Sig Sauer, Inc., Newingt...

1. An automatic sear assembly for a rifle, the assembly comprising:
an automatic sear configured to be operatively coupled with a safe/fire selector switch and a hammer of the rifle;
a sear lever disposed adjacent a rear surface of the automatic sear and extending beyond a height of the automatic sear;
a first spring disposed adjacent the sear lever and the rear surface of the automatic sear and configured to bias the sear
lever into physical contact with the rear surface of the automatic sear; and

a second spring disposed adjacent the sear lever and the rear surface of the automatic sear and configured to operatively
interface with the safe/fire selector switch;

wherein the automatic sear, the sear lever, the first spring, and the second spring share a rotational axis; and
wherein rotational deflection of the sear lever in a first direction about the shared rotational axis causes the sear lever
to rotate out of physical contact with the rear surface of the automatic sear, and rotational deflection of the sear lever
in a second direction about the shared rotational axis imparts rotation to the automatic sear causing the automatic sear to
sear with the hammer of the rifle.

US Pat. No. 10,024,629

ACCESSORY MOUNTING SYSTEM

Sig Sauer, Inc., Newingt...

1. An elevation adjuster for a firearm accessory comprising:an elevation wedge having a first vertical surface and a first inclined plane normal to the first vertical surface, the inclined plane having a slope angle;
an elevation plunger having a contact surface for engaging an accessory, a second surface for engaging the first vertical surface and a second inclined plane for engaging the first inclined plane; and
an adjustment screw in contact with a surface of the elevation wedge wherein advancement of the adjustment screw moves the elevation wedge in a first direction and moves the elevation plunger in a second direction that is normal to the first direction.

US Pat. No. 10,024,628

REAR SIGHT MOUNTING ASSEMBLY FOR A FIREARM

SIG SAUER, INC., Newingt...

1. A firearm comprising:a barrel;
a firing chamber in mechanical communication with the barrel;
a slide disposed over the barrel and firing chamber, the slide having a rear end and a front end opposite the rear end, the slide comprising:
a planar mounting surface having a first end, and a second end opposite the first end, the first end of the planar mounting surface at the rear end of the slide and the second end of the planar mounting surface between the rear end of the slide and the front end of the slide;
at least two mounting features defined by the planar mounting surface;
a mounting pocket defined by the slide, the mounting pocket proximate to the second end of the planar mounting surface;
a mounting plate comprising:
a first end defining a sight mounting slot, the first end disposed at the first end of the planar mounting surface;
a second end opposite the first end, the second end comprising a forward mounting tab configured to mount within the mounting pocket defined by the slide at the second end of the planar mounting surface; and
an axial mounting rib extending between the first end of the mounting plate and the second end of the mounting plate along a longitudinal axis of the mounting plate.

US Pat. No. 10,018,434

FIREARM RECEIVER WEAR SURFACE ASSEMBLY

SIG SAUER, Inc., Newingt...

1. A wear surface assembly for a firearm receiver, the assembly comprising:a first wear surface member configured to be disposed within the firearm receiver between a bolt carrier and a first internal sidewall portion of the firearm receiver; and
a first retention member configured to fix the first wear surface member and a second wear surface member in place within the firearm receiver;
wherein:
the first wear surface member is configured to prevent at least one of the bolt carrier and a cam pin head from being incident with the first internal sidewall portion of the firearm receiver along at least a portion of a path of travel of the bolt carrier within the firearm receiver; and
the wear surface assembly is configured to be visually undetectable from an exterior of the firearm receiver when installed therein.

US Pat. No. 9,448,035

FOLDABLE FIREARM SIGHT ASSEMBLY INCLUDING A LEAF SPRING

Sig Sauer, Inc., Newingt...

1. A firearm sight assembly comprising:
a base configured to attach to a firearm rail;
a sight arm rotationally coupled to the base; and
a leaf spring positioned between the base and the sight arm;
wherein the leaf spring provides a biasing force to the sight arm in a direction substantially away from the base; and
wherein the leaf spring defines an aperture and the sight arm includes at least one tooth configured to insert into the leaf
spring aperture to lock the sight arm in a stowed and/or deployed position.

US Pat. No. 9,766,026

GAS OPERATING SYSTEM FOR AN AUTOMATIC PISTOL-CALIBER FIREARM

SIG SAUER, INC., Newingt...

1. A gas operating system for a pistol-caliber firearm, the system comprising:
a barrel including a breech end and a gas port, the gas port located within a region of the barrel corresponding to a peak
pressure curve associated with a pistol cartridge;

a gas block disposed on the breech end of the barrel, the gas block having a piston disposed therein and configured to divert
a volume of gas from the barrel of the firearm to the piston through the gas port, the volume of gas produced during discharge
of the pistol cartridge chambered by the firearm; and

an operating rod connected to a bolt carrier of the firearm and configured to be driven rearward by the piston upon impingement
on the piston of the diverted volume of gas, wherein rearward movement of the operating rod and connected bolt carrier automatically
cycles the firearm.

US Pat. No. 10,030,940

FIREARM ACCESSORY ATTACHMENT CLAMP

SIG SAUER, INC., Newingt...

1. A firearm accessory mounting clamp comprising:a base comprising:
a first planar mounting face and a second planar mounting face, each of the first planar mounting face and the second planar mounting face orthogonal to a first axis;
a first angled mounting face that is flat and is disposed between the first planar mounting face and the second planar mounting face, the first angled mounting face at a first oblique angle with respect to the first axis;
a second angled mounting face that is flat and is disposed between the first planar mounting face and the second planar mounting face, the second angled mounting face at a second oblique angle with respect to the first axis; and
a sidewall releasably connected to the base.

US Pat. No. 9,746,281

LATCH AND RELEASE MECHANISM FOR ADJUSTABLE FIREARM STOCK

SIG SAUER INC., Newingto...

1. An adjustable stock assembly for a firearm comprising:
a housing;
a stock rail having a slot and a plurality of recesses adjacent to the slot and positioned in the housing, wherein the housing
is extendable and retractable with respect to the stock rail;

a latch being rotatable relative to the stock rail between a latched position, an unlatched position and a disassembly position,
the latch having an engagement member configured to engage one of the recesses of the stock rail while the latch is in the
latched position and to engage the slot while the latch is in the unlatched position;

a release operatively coupled to the latch; and
a key movable with respect to the release, the key being configured and arranged to limit rotational movement of the latch.

US Pat. No. 9,702,644

REGULATOR FOR A FIREARM AUTO LOADER

SIG SAUER, INC., Newingt...

1. A regulator for a gas operated firearm auto loader, comprising:
a chamber constructed and arranged to receive pressurized combustion gas from a gas port of a barrel of the firearm when a
round is fired from the firearm;

a piston having a piston head in fluid communication with said chamber, the piston constructed and arranged to move away from
a firing position to actuate at least a portion of a cycle of the firearm when urged by pressurized combustion gas received
in said chamber; and

a throttling valve in fluid communication with said chamber, the throttling valve having a first position in which pressurized
combustion gas from the gas port of a barrel of a firearm can flow into the chamber, and a second position in which pressurized
combustion gas from the gas port of a barrel of a firearm cannot flow into the chamber, and wherein the throttling valve is
configured to move from the first position to the second position when pressure in the chamber exceeds a threshold level.

US Pat. No. 9,982,962

AIR GUN WITH MULTIPLE ENERGY SOURCES

SIG SAUER, INC., Newingt...

1. An air gun, comprising:a barrel including a projectile chamber configured to receive a projectile;
a transfer port in fluid communication with the projectile chamber of the barrel, the transfer port configured to deliver a compressed air charge to the projectile chamber for firing the projectile from the barrel of the air gun;
a cocking mechanism;
a manually activated mode selector valve;
a first energy source movable to a cocked position by actuation of the cocking mechanism, the first energy source configured to provide at least a portion of the energy for compressing the air charge when released from the cocked position; and
a second energy source configured to selectively provide, via the manually activated mode selector valve, at least another portion of the energy for further compressing the air charge.

US Pat. No. 9,835,399

MONOCORE SILENCER WITH INTEGRAL CONICAL FLASH HIDER

SIG SAUER, INC., Newingt...

1. An accessory for a firearm, comprising:
a housing mountable to the firearm in alignment with a firing axis of the firearm;
a core structure positionable within said housing in alignment with the firing axis, the core structure including a proximal
bullet receiving portion and a distal bullet discharge portion;

a series of baffles that at least partially define a series of suppression chambers in said core structure that extend from
said proximal bullet receiving portion and towards said distal bullet discharge portion, the series of suppression chambers
including at least a proximal suppression chamber and a distal suppression chamber, the proximal suppression chamber positioned
between the proximal receiving portion and the distal bullet discharge portion, the distal suppression chamber positioned
between the proximal suppression chamber and the distal bullet discharge portion, the proximal suppression chamber having
a first volume, and the distal suppression chamber having a second volume that is smaller than the first volume; and

a flash suppression structure provided by said core structure and that defines a cross section that lies orthogonal to the
firing axis and that expands in area at positions further away from said proximal bullet receiving portion of said core structure
to promote dispersion of propellant gases exiting the distal bullet discharge portion;

wherein the flash suppression structure is a conical structure positioned within the distal suppression chamber and having
a first end and an opposing second end, wherein the first end of the flash suppression structure is in contact with and supported
by one of said series of baffles and the second end is in contact with and supported by a distal face of the distal bullet
discharge portion of the core structure.

US Pat. No. 9,766,036

HAND GUARD FOR FIREARM

Sig Sauer, Inc., Newingt...

1. A hand guard assembly attachable to a receiver of a barrel of a firearm, comprising:
a lower hand guard member having a first plurality of bores formed therein, each of the first plurality of bores being tangential
to an internal surface of the lower hand guard member, the internal surface defining a central hollow concentric about a longitudinal
axis of the lower hand guard member; and

an upper hand guard member having a second plurality of bores formed therein, each of the second plurality of bores being
tangential to the internal surface and being axially aligned with a respective one of the first plurality of bores while the
upper hand guard member is mated or attached to the lower hand guard member;

wherein each of the first and second plurality of bores is entirely beneath an overall external surface the hand guard assembly
while the upper hand guard member is mated or attached to the lower hand guard member.

US Pat. No. 9,618,288

FIREARM TRIGGER ASSEMBLY

SIG SAUER, INC., Newingt...

14. A firearm trigger assembly comprising:
a trigger configured to be pivotally coupled to a firearm receiver using a trigger pivot pin;
a disconnect including an integral disconnect cam, wherein the disconnect is configured to be pivotally coupled to the trigger;
and

a hammer including an integral hammer cam, wherein the hammer is configured to be pivotally coupled to the receiver using
a hammer pivot pin;

wherein the disconnect cam provides a variable resistance to hammer rotation during firearm recoil, the variable resistance
having a low initial resistance and increasing with continued rotation of the hammer.

US Pat. No. 10,088,269

FIREARM WITH INTEGRATED POWER SOURCE

SIG SAUER, INC., Newingt...

1. A firearm comprising:a grip;
a barrel assembly frame connected to the grip;
a trigger guard connected to the grip and the barrel assembly frame;
an elongate conductor frame disposed within the firearm having a first frame end and a second frame end, the first frame end disposed within the grip and the second frame end disposed at an end of the barrel assembly frame opposite the grip; and
a conductor in contact with the elongate conductor frame, wherein the conductor comprises
a first conductor end disposed proximate to the first frame end of the elongate conductor frame, the first conductor end including at least one electrical contact point, and
a second conductor end disposed proximate the second frame end of the elongate conductor frame.

US Pat. No. 10,012,470

FIREARM STOCK ADJUSTMENT SYSTEM

SIG SAUER, INC., Newingt...

1. A firearm stock extension assembly comprising:a stock extension having a longitudinal axis;
an extension frame connected to the stock extension, the extension frame defining:
two channels parallel to the longitudinal axis of the stock extension;
a plurality of extension apertures; and
an insert configured to be removably disposed within the two channels of the extension frame in a direction parallel to the longitudinal axis of the stock extension, the insert defining at least one insert aperture configured to align with at least one of the plurality of extension apertures upon insertion of the insert into the two channels parallel to the longitudinal axis of the stock extension.

US Pat. No. 10,082,377

HINGEABLE OGIVE PROJECTILE

Sig Sauer, Inc., Newingt...

1. A projectile comprising:a projectile body comprising:
a nose portion, located distally on the projectile, the nose portion comprising a plurality of slits, the plurality of slits being cut from an outer surface of the nose portion to a central cavity of the nose portion;
a rear portion, located proximally on the projectile; and
an open space formed in a meplat at a distal end of the nose portion around which the meplat forms a tapered ring, the tapered ring being tapered inwardly from a proximal portion to a distal portion.

US Pat. No. 10,101,137

HEAT-MITIGATING NOSE INSERT FOR A PROJECTILE AND A PROJECTILE CONTAINING THE SAME

Sig Sauer, Inc., Newingt...

1. A nose insert for use in a projectile comprising:a polymer nose element including a tapered head portion and a first shank portion attached to the tapered head portion, the tapered head portion includes a cavity disposed therein, and the first shank portion includes a first diameter smaller than a width of the tapered head portion adjacent to the first shank portion; and
a metal tip disposed in the tapered head portion of the polymer nose element, the metal tip includes a tapered end and a second shank portion attached to the tapered end, and the second shank portion having a second diameter smaller than a width of the tapered end adjacent to the second shank portion, wherein the second shank portion is received in the cavity within the tapered head portion of the polymer nose element.

US Pat. No. 10,119,797

CAP-BASED HEAT-MITIGATING NOSE INSERT FOR A PROJECTILE AND A PROJECTILE CONTAINING THE SAME

Sig Sauer, Inc., Newingt...

1. A nose insert for use in a projectile comprising:a polymer nose element including a tapered head portion attached to a shank portion, the tapered head portion including a forward tapered portion and a rear tapered portion, the rear tapered portion being between the forward tapered portion and the shank portion, and the shank portion including a diameter smaller than a diameter of the rear tapered portion adjacent to the shank portion; and
a metal cap disposed on the forward tapered portion of the tapered head portion of the polymer nose element, the metal cap terminates at a forward end in a meplat.

US Pat. No. 10,184,742

FIRE CONTROL MECHANISM FOR STRIKER-FIRED PISTOLS WITH ENHANCED SAFETY FEATURES

Sig Sauer, Inc., Newingt...

1. A pistol comprising:a frame;
a striker operably connected to the frame;
a trigger operably connected to the frame, the trigger movable between a forward position and a rearward position;
a trigger bar operatively coupled to the trigger; and
a sear operatively coupled to the trigger bar and the striker, the sear including a cam surface integral to the sear, wherein the trigger bar exerts a force on the cam surface when the trigger is in the forward position, the force on the cam surface opposing pivotal movement of the sear so as to prevent movement of the striker from a cocked position.

US Pat. No. 10,215,526

STOCK

Sig Sauer, Inc., Newingt...

1. An adjustable stock for a firearm comprising:a comb extension configured to move between an expanded configuration and a retracted configuration, the comb extension comprising a comb extension indexer positioned on a surface in a lower portion of the comb extension;
a buttpad extension configured to move between an expanded configuration and a retracted configuration including a buttpad extension indexer on a surface in a forward portion of the buttpad extension;
at least one stationary indexer tab in a fixed position relative to the firearm, the at least one stationary indexer tab having a first surface configured to engage the comb extension indexer and an opposed second surface configured to engage the buttpad extension indexer; and
a single common lock for securing the at least one stationary indexer tab to each of the comb extension indexer and the buttpad extension indexer.

US Pat. No. 10,234,229

MUZZLE END ACCESSORY MOUNT FOR A FIREARM

Sig Sauer, Inc., Newingt...

1. A muzzle end accessory mount for a firearm, the accessory mount comprising:a proximal portion and a distal portion, the proximal and distal portions defining a passageway for passage of a bullet;
a barrel connector internally threaded and having a first diameter;
a first accessory connector constructed and arranged to removably connect with a first accessory in axial alignment with a barrel of the firearm and in a plurality of rotational orientations about a firing axis of the firearm, wherein said first accessory connector includes internal threads and has a second diameter larger than the first diameter to engage corresponding threads of the first accessory; and
a second accessory connector constructed and arranged to removably connect with a second accessory in axial alignment with the firing axis of the firearm, said second accessory connector includes threads to engage corresponding threads of the second accessory.

US Pat. No. 10,288,375

AIR GUN WITH BARREL ALIGNMENT WEDGE

Sig Sauer, Inc., Newingt...

18. A method of making an air gun, the method comprising:joining a barrel block to a compression fork so that wedges disposed on the barrel block are in contact with inclined shelves disposed on the compression fork;
match drilling a pivot pin hole through the compression fork and the barrel block; and
pivotally securing the compression fork to the barrel block by passing a pivot pin through the pivot pin hole.

US Pat. No. 10,288,380

ENERGY TRANSFER INDICATOR

Sig Sauer, Inc., Newingt...

1. A method of indicating an energy transfer level in an optical sighting system, the optical sighting system having a main optical axis extending from an ocular end to an objective end of the optical sighting system, the main optical axis being fixedly aligned with a bore line of a shooting device, the method comprising:receiving, from an electronic ballistics calculator, a ballistics profile indicating a calculated path of a projectile to be fired from the shooting device toward a target;
receiving, through a mobile application running on a mobile device external to the optical sighting system, a user input indicative of a desired terminal performance value for the projectile;
determining, by the mobile application, a predicted terminal performance value of the projectile based, at least in part, on the ballistics profile;
activating, when the predicted terminal performance value does not exceed the desired terminal performance value, an electronic, non-numeric performance indicator structured to provide a notification signal to a user; and
deactivating the electronic, non-numeric performance indicator when the predicted terminal performance value exceeds the desired terminal performance value.

US Pat. No. 10,480,880

AMMUNITION MAGAZINE

Sig Sauer, Inc., Newingt...

1. A detachable box magazine comprising:a hollow magazine tube extending longitudinally along a median plane, the hollow magazine tube having a front tube sidewall, a rear tube sidewall, a left tube sidewall on a left side of the median plane, and a right tube sidewall on a right side of the median plane, wherein the hollow magazine tube defines a single-stack portion and a double-stack portion positioned below the single-stack portion, the single-stack portion sized and constructed to retain at least two vertically aligned cartridges;
wherein opposite lateral margins of the front sidewall have a stepped shape between the double-stack portion and an upper tube end, the stepped shape including a first sloped portion located adjacent the upper tube end and extending downward and laterally outward from the median plane, a vertical section extending from the first sloped portion downward along the median plane, and a second sloped portion extending from the vertical section downward and laterally outward from the median plane to the double-stack portion, wherein the first sloped portion, the vertical section, and the second sloped portion each have a vertical size commensurate with a cartridge to be retained in the detachable box magazine.

US Pat. No. 10,330,447

PROJECTILE WITH CORE-LOCKING FEATURES AND METHOD OF MANUFACTURING

Sig Sauer, Inc., Newingt...

1. A firearm projectile comprising:a core extending along a central axis from a base portion to a tip portion, the base portion generally having a cylindrical shape and the tip portion comprising an ogive shape;
a jacket encasing the core along the base portion and the tip portion, the jacket having a shank portion defining a closed rear end and having an ogive portion extending to an open front end, the shank portion including a forward sidewall portion having a forward sidewall thickness and a rear sidewall portion having a rear sidewall thickness at least 1.5 times the forward sidewall thickness; and
a plurality of protrusions extending into the core from an inside of the shank portion, each of the plurality of protrusions being continuous with the shank portion at an axial location between the forward sidewall portion and the rear sidewall portion, the plurality of protrusions having a circumferentially spaced-apart arrangement with each of the plurality of protrusions engaging the core to retain the core together with the jacket upon impact with a target.

US Pat. No. 10,337,817

FIREARM TRIGGER ASSEMBLY

Sig Sauer, Inc., Newingt...

1. A hammer for a firearm trigger mechanism, the hammer comprising:a body having a first end and a second end;
an integral cam feature on the first end of the body;
an integral sear feature adjacent to the integral cam feature;
the second end of the body defining a pivot pin hole, the pivot pin hole having a longitudinal axis;
the second end of the body defining one or more pivot pin retainer apertures adjacent to the pivot pin hole, each pivot pin retainer aperture having a longitudinal axis, wherein each longitudinal axis of the one or more pivot pin retainer apertures is substantially parallel to the longitudinal axis of the pivot pin hole;
a pivot pin configured to insert into the pivot pin hole; and
a pivot pin retainer configured to insert into the one or more pivot pin retainer apertures, wherein the pivot pin retainer is further configured to non-permanently retain the pivot pin in the pivot pin hole.

US Pat. No. 10,386,137

OPERATING SYSTEM FOR SMALL CALIBER RIFLES

Sig Sauer, Inc., Newingt...

1. An operating system for a firearm, the operating system comprising:a firing pin; and
a recoil assembly comprising:
an op-rod;
a firing pin lever attached to the op-rod, the firing pin lever configured to prevent the firing pin from moving forward to strike an ammunition primer unless a trigger is in a firing position; and
a plunger return spring configured to expand and contract along a longitudinal axis of the firearm, the plunger return spring configured to bias the firing pin lever to engage the firing pin toward a resting state.

US Pat. No. 10,386,154

AIR GUN WITH COCKING LINKAGE SHOE

Sig Sauer, Inc., Newingt...

1. An air gun comprising:a barrel pivotally attached to a cylinder;
a linkage attached to the barrel and operatively coupled to a piston within the cylinder, the linkage including
a lever having a first end and a second end, the first end of the lever attached to the barrel, and the second end including a first surface having a concave or convex shape, and
a shoe operatively connected to the piston and attached to the lever, the shoe including a second surface having a concave or convex shape to receive the first surface of the second end of the lever;
a trigger mechanism configured to release the piston in response to operating the trigger mechanism; and
wherein the shoe is configured to move with the lever through an entire stroke of the lever.

US Pat. No. 10,401,105

MULTI-CALIBER MAGAZINE FOR A FIREARM AND A METHOD OF FORMING THE SAME

Sig Sauer, Inc., Newingt...

1. A multi-caliber magazine for a firearm configured to support a plurality of cartridges, the multi-caliber magazine comprising:a housing having a front, a rear, a first sidewall extending vertically between the front and the rear, and a second sidewall extending vertically between the front and the rear;
a first pair of ribs including a first rib extending vertically along the first sidewall, and a second rib extending vertically along the second sidewall, the first pair of ribs positioned proximate the rear of the housing; and
a second pair of ribs including a third rib extending vertically along the first sidewall, and a fourth rib extending vertically along the second sidewall, wherein a first distance between the third rib and the fourth rib is less than a second distance between the first rib and the second rib;
wherein each of the third rib and the fourth rib has a pair of inward protrusions extending into the housing and a portion extending outward, the portion extending outward located between the pair of inward protrusions, wherein the portion extending outward and the pair of inward protrusions are positioned inward relative to the respective first sidewall or second sidewall.

US Pat. No. 10,465,999

HANDGUN WITH FORWARD ASSIST

Sig Sauer, Inc., Newingt...

1. A handgun comprising:a frame with a distal frame portion and a proximal frame portion, the frame configured to house a fire control group and having frame rails extending longitudinally along a top of the frame;
a slide displaceable along the frame rails between a recoil position and a battery position, the slide defining a catch surface; and
a forward assist assembly constructed and arranged to exert a force in a distal direction on the slide only when the slide is within a predetermined distance from the battery position.

US Pat. No. 10,451,379

AIR GUN WITH ADJUSTABLE TRIGGER MECHANISM

Sig Sauer, Inc., Newingt...

1. An air gun comprising:a barrel attached to a cylinder; and
a trigger mechanism including
a sear operatively coupled to a trigger bar, the sear is configured to release a piston disposed within the cylinder in response to operating the trigger mechanism,
a trigger blade operatively coupled to the trigger bar and including a trigger stage bracket, the trigger stage bracket to provide a first pull stage and a second pull stage, wherein the second pull stage operates with more resistance force than the first pull stage during movement of the trigger blade, and
an adjustment screw disposed within the trigger blade and in contact with the trigger stage bracket, the adjustment screw to position of the trigger stage bracket relative to the trigger blade to adjust a distance at which the trigger blade is to transition from the first pull stage to the second pull stage.

US Pat. No. 10,415,917

MODULAR FIREARM SOUND SUPPRESSOR COUPLER

Sig Sauer, Inc., Newingt...

1. A firearm sound suppressor comprising:a coupler comprising a first portion and a second portion opposed to the first portion, the first portion defining first threads and a first surface and the second portion defining second threads and a second surface; and
a supplemental baffle disposed within and integral with the coupler.

US Pat. No. 10,488,156

OPTICAL SYSTEM ACCESSORY WITH CANT INDICATION

SIG SAUER, INC., Newingt...

1. A cant-detecting device that is configured to be fixedly mounted to an optical system for a shooting device, the device comprising:an electronic inclinometer configured to determine a cant of the mounted optical system; and
a collimator assembly, including:
an electronic indicator structured to provide an indicator signal to a user related to the determined cant, and
a collimating lens mounted to the collimator assembly spaced apart from the electronic indicator.

US Pat. No. 10,480,900

OPTICAL SYSTEM WITH CANT INDICATION

SIG SAUER, INC., Newingt...

1. A direct, see-through optical system having a main optical axis extending from an ocular end to an objective end of the optical system, the main optical axis of the optical system structured to be fixedly aligned with a long axis of a shooting device, the see-through optical system comprising:an electronic inclinometer structured to determine a cant of the shooting device relative to a vertical transverse axis of the main optical axis of the optical system; and
an electronic indicator structured to provide an indicator signal to a user related to the determined cant, including:
a first light indicator disposed adjacent a periphery of the optical system structured to be selectively illuminated to indicate a cant in a first direction; and
a second light indicator disposed adjacent the perimeter of the optical system structured to be selectively illuminated to indicate a cant in a second direction, the first and second light indicators each located on opposite sides of the vertical transverse axis and along a horizontal axis of the optical system.

US Pat. No. 10,443,979

TURRET ASSEMBLY

Sig Sauer, Inc., Newingt...

1. A turret assembly configured to be coupleable to the combination of a rifle scope and a rifle, to adjust the position of the rifle scope relative to the rifle, the turret assembly comprising:a turret body, the turret body having a first end and a second end, the turret body defining a turret axis;
a jacking screw coupled to the first end of the turret body, the jacking screw configured for rotational movement relative to the turret body about the turret axis, wherein movement of the jacking screw is configured to adjust the rifle scope in relation to the rifle;
a turret cap coupled to the second end of the turret body, the turret cap configured for rotational movement relative to the turret body about the turret axis, wherein movement of the turret cap initiates movement of the jacking screw; and
an indicator coupled to the turret body, the indicator configured to depict information about the position of the turret cap relative to the turret body, wherein the indicator is configured for only translational movement relative to the turret body along the turret axis.

US Pat. No. 10,458,746

ADJUSTABLE CHEEK RISER

Sig Sauer, Inc., Newingt...

1. An adjustable cheek riser for a firearm comprising:a comb extension member configured to move between at least an expanded configuration and a retracted configuration;
at least one living hinge integral with the comb extension member; and
at least one pin, the at least one pin being configured to switch between a locked and an unlocked position upon activation of the living hinge.