Abstract: A firearm has a magazine disconnect mechanism. The firearm includes a trigger operable between a resting position and a pulled position. The magazine disconnect mechanism has a trigger block positioned between the trigger and a magazine well of the firearm, where the trigger block is movable between a blocking position and a non-blocking position. In the blocking position the trigger block obstructs moving the trigger to the pulled position. The trigger block occupies the non-blocking position when a magazine is installed in the magazine well, and the trigger block occupies the blocking position when the magazine is absent from the magazine well.

Abstract: A multi-piece ammunition cartridge casing includes a casing base extending along a central axis and defining an opening extending axially into the casing base from the distal base end. The inner casing surface defines a circumferential groove with a groove radius greater than a radius of an adjacent portion of the opening. The cartridge casing also includes a casing body with a proximal end portion disposed in the opening of the casing base. The casing body is secured to the casing base by way of a flange protruding radially outward in mating contact with the circumferential groove. A flash opening extends from the primer pocket to the inner face, where at least part of the flash opening expands in size moving toward the inner face. An ammunition cartridge incorporating the multi-piece cartridge casing and methods of making are also disclosed.

Abstract: A bipod assembly includes a first yoke configured to be attached to a firearm. A second yoke is pivotably attached to the first yoke. Right and left legs are pivotably connected to the second yoke and movable between an open position and a closed position. The bipod assembly is movable between a stowed and locked position, a stowed and unlocked position, a deployed and unlocked position, and a deployed and locked position. In a locked position, part of each leg engages the first yoke to maintain the leg's open or closed position as well as the leg's deployed or stowed position. The bipod assembly enables one-hand deployment from a stowed state.

Abstract: A quick disconnect assembly for a sling mount includes a cup having a top portion and a shaft portion connected to the top portion, the cup defining a non-circular through-opening and a recess that extends axially part way into the shaft portion. A post includes a post body extending axially between a first end portion and a second end, the first end portion having one or more protrusions. The post is configured to pass through the through-opening in the cup when the post is in an unlocked position with the protrusion(s) aligned with the through-opening. Rotating the post to a locked position aligns the protrusion(s) with the recess, which can define a plus shape with the through opening. A mounting body on the second end of the post defines or can include an attachment point. A spring is on the post between the mounting body and the cup.

Abstract: A target sight for a firearm includes a lip on a front end of the target sight configured to be inserted into a mating slot of a receiving portion of the firearm, a bottom surface configured to interface with the receiving portion of the firearm, a first feature extending from the bottom surface configured to interface with the receiving portion of the firearm, a second feature extending from the bottom surface configured to interface with the receiving portion of the firearm, a rear landing on a rear end of the target sight opposite the front end, an iron sight configured to sit on the rear landing, and at least one fastener structured to clamp the rear landing between the iron sight and the firearm, thereby securing the target sight to the firearm.

Abstract: Disclosed is an extractor for an autoloading firearm, the extractor having an extractor body extending a proximal end portion to a distal end portion. A knuckle is between the proximal end portion and the distal end portion and defines a pin opening extending crosswise through the extractor, where the pin opening has an elongated shape. During rearward movement of the bolt after firing, the elongated opening enables the extractor to shift downward and/or forward so that part of the extractor contacts the bolt, thereby preventing the extractor from pivoting about the extractor pin.

Abstract: A firearm accessory mounted to a firearm accessory rail and allowing adjustment of the accessory relative to the firearm accessory rail includes an indexing member having a tab structured to engage with one of the series of slots of the firearm accessory rail, and having two or more indexing slots, the two or more indexing slots spaced apart from one another at a distance less than the regular pitch interval of the accessory rail, and a single clamp having a crossmember structured to engage with one of the two or more indexing slots, the single clamp structured to simultaneously secure the accessory and the indexing member to the firearm accessory rail in a single clamping action.

Abstract: A firearm gas block assembly has a gas block configured to be attached to a firearm barrel, the gas block defining a gas passage and a valve opening in fluid communication with the gas passage. A valve body is sealingly received in the valve opening and defines an outlet port, a first valve opening of a first size, and a second valve opening of a second size different from the first size. Each of the first valve opening and the second valve opening fluidly communicate with the outlet port. The valve body is movable between a first position in which the first valve opening is aligned with the gas passage and a second position in which the second valve opening is aligned with the gas passage. The valve provides two discrete gas settings selectable by hand without the need for tools.

Abstract: A recoil assembly for a rifle includes a barrel assembly, a bolt, bolt actuator, and a buffer assembly. The barrel assembly includes a barrel secured to a barrel extension. The barrel assembly is slidably received in the receiver and the barrel extension is coupled to a hydraulic buffer assembly located below the barrel extension. The hydraulic buffer assembly is configured and arranged to arrest rearward movement of the barrel assembly when the rifle is fired. An op-rod spring is coupled to an op rod extending that can be actuated by a gas piston assembly on the barrel. The op-rod spring is configured and arranged to arrest rearward movement of the bolt assembly.

Abstract: Examples provide a compensator for a firearm. In one example, a firearm assembly includes a firearm having a barrel defining a projectile bore along a bore axis, an attachment mechanism coupled to the firearm and configured to mount the firearm to a movable platform, and a compensator attached to the barrel. The compensator may have a body that defines at least one compensator port configured to vent a portion of gases exiting the barrel upon firing the firearm. In one example, the compensator is oriented on the barrel to direct the portion of gases vented through the at least one compensator port in a direction to counteract angular recoil forces on the movable platform to which the firearm is mounted, the angular recoil forces being caused upon firing of the firearm.

Abstract: A multi-projectile ammunition cartridge has a casing that extends along a central axis to a mouth, the casing having an internal surface and an external surface. An inside surface of the casing adjacent the mouth is parallel to the central axis while the external surface has a slight taper relative to the central axis. Two or more coaxially aligned projectiles are retained within the parallel portion of the casing adjacent the mouth, each projectile having a tapered nose and a rear cavity, where a nose profile of a rearward one of the projectiles differs from the a cavity profile of a forward adjacent one of the projectiles.

Abstract: A suppressor heat shield is configured for use with a firearm suppressor. In one variant, the heat shield can be secured to the suppressor at its distal end using a retaining ring between the heat shield and the suppressor distal end. In another variant, the heat shield can be secured to a proximal end of the suppressor or suppressor mount via fasteners that extend through a mount portion of the heat shield and into threaded bosses on the proximal end of the suppressor or suppressor mount. The inside of the heat shield can include leaf springs arranged to reduce or eliminate movement and vibration. The geometry of stand-offs and other structures between the heat shield and the suppressor can be selected to reduce conductive heat transfer from the suppressor to the heat shield. A suppressor assembly that includes the heat shield is also disclosed.

Abstract: A handgun having an integrated optic and an improved striker design. The striker may be designed such that it sits lower within the slide of the handgun, thus providing further clearance above the striker for the optic. In some examples, the striker includes an offset tip (as opposed to a coaxially-aligned tip) that allows the striker body to sit lower within the slide of the handgun. In some examples, the striker incorporates more than one spring to reduce the diameter of the main body, thus providing more clearance above the striker. Due at least in part to the altered design of the striker, the optic is arranged on the slide of the handgun such that the top surface of the optic body is aligned with the top surface of the slide.

Abstract: A mounting assembly for a firearm muzzle attachment includes an attachment mount with a clutch assembly. A muzzle attachment can be secured to the distal end portion of the attachment mount. The attachment mount is configured to removably attach the muzzle attachment to a muzzle adapter installed on the end of a barrel. A clutch assembly on the attachment mount is operable between a locked position and an unlocked position. In the locked position, the clutch assembly frictionally engages the muzzle adapter to inhibit loosening rotation of the muzzle attachment relative to the muzzle adapter. In the unlocked position, the clutch assembly disengages from the muzzle adapter to permit loosening rotation of the attachment mount. The locking mechanism includes one or more secondary retention features that inhibit axial slipping of the assembly when the clutch assembly is in the locked position. A method of use is also disclosed.

Abstract: A magazine catch for a firearm has a catch body, a leg extending longitudinally from the catch body to a distal end, where the leg has a first leg portion and a second leg portion spaced from one another by a longitudinal gap such that the second leg portion can flex independently of the first leg portion. A catch protrusion is on a distal end portion of the leg, where the longitudinal gap extends through the catch protrusion to define a first catch portion and a second catch portion. The magazine catch can be provided, for example, as a stand-alone component or component group, as part of a firearm, or in a parts kit for an existing firearm.

Abstract: A firearm has a magazine disconnect mechanism. The firearm includes a trigger operable between a resting position and a pulled position. The magazine disconnect mechanism has a trigger block positioned between the trigger and a magazine well of the firearm, where the trigger block is movable between a blocking position and a non-blocking position. In the blocking position the trigger block obstructs moving the trigger to the pulled position. The trigger block occupies the non-blocking position when a magazine is installed in the magazine well, and the trigger block occupies the blocking position when the magazine is absent from the magazine well.

Abstract: A firearm stock includes a stock body slidably mounted on a beam. A lever attached to the stock body can be moved between a locked position and at least one unlocked position, where operating the lever moves a locking mechanism between locked and unlocked positions. For example, when the lever is in a first unlocked position, the locking mechanism permits longitudinal adjustment of the stock body along the beam. When the lever is in a second unlocked position the locking mechanism permits the stock body to be slidably removed from the beam. In one example, the lower portion of the stock body defines a plurality of cam pathways for pins that secure the lever to the stock body. Forward cam pathways permit either a pivoting movement about the rear pin or a downward and forward shifting movement.