Abstract: An exemplary firearm includes a magazine well including an adapter-receiving portion defining an adapter receiving-recess and a magazine adapter removably coupled to the adapter-receiving portion of the magazine well. The magazine adapter includes a magazine catch assembly configured to move between a magazine-engaging state and a magazine disengaging state.

Abstract: Ejection assemblies, actions including such ejection assemblies, and firearms including such actions and/or ejection assemblies are provided herein. At least one ejection assembly is provided that is configured to facilitate forward ejection of spent cartridges when a forward-ejection guide cover is in place on a receiver, and to allow for side ejection of spent cartridges when the forward-ejection guide cover is out of place on the receiver. Such a configuration may allow for reliable ejection and access to the action for clearance of jams or malfunctions while providing flexibility with forward or conventional side ejection.

Abstract: Ejection assemblies, actions including such ejection assemblies, and firearms including such actions and/or ejection assemblies are provided herein. At least one ejection assembly is provided that is configured to facilitate forward ejection of spent cartridges when a forward-ejection guide cover is in place on a receiver, and to allow for side ejection of spent cartridges when the forward-ejection guide cover is out of place on the receiver. Such a configuration may allow for reliable ejection and access to the action for clearance of jams or malfunctions while providing flexibility with forward or conventional side ejection.

Abstract: A suppressor system includes at least one inner core having a core bore defined therein, the core bore having a nominal core bore diameter. The inner core also includes a core-coupling portion. A plurality of muzzle brakes that each includes a bore having a nominal brake bore diameter. Each muzzle brake includes a brake-coupling portion. The inner core is configured to allow the brake-coupling portions of muzzle brakes having nominal brake bore diameters that are equal to or less than the nominal core bore diameter to couple to the core-coupling portion and to prevent the brake-coupling portions of muzzle brakes having nominal brake diameters that are greater than the nominal core diameter from coupling to the core-coupling portion.

Abstract: A trigger assembly including a housing having an upper portion, a lower portion, a front portion, a rear portion, a first side portion and a second side portion. A recess is defined in the housing between the upper portion and the lower portion. First and second guide channels are defined in the first side portion and the second side portion respectively. A trigger lever is configured to pivot within the housing about a pivot point positioned at least partially within the housing, the trigger lever having a body, a trigger bar extending in a first direction from the body, and a safety bar extending in a section direction from the body. A safety mechanism includes a first guide rail, a second guide rail spaced apart from the first guide rail, and a blocking member extending between the first guide rail and the second guide rail.

Abstract: A suppressor system includes at least one inner core having a core bore defined therein, the core bore having a nominal core bore diameter. The inner core also includes a core-coupling portion. A plurality of muzzle brakes that each includes a bore having a nominal brake bore diameter. Each muzzle brake includes a brake-coupling portion. The inner core is configured to allow the brake-coupling portions of muzzle brakes having nominal brake bore diameters that are equal to or less than the nominal core bore diameter to couple to the core-coupling portion and to prevent the brake-coupling portions of muzzle brakes having nominal brake diameters that are greater than the nominal core diameter from coupling to the core-coupling portion.

Abstract: An alignment and locking assembly includes an alignment tab having an engagement surface and a feed ramp extending proximally from the engagement surface. The assembly also includes a barrel extension having a distal end, and a proximal end. The proximal end defines a slot configured to matingly receive the engagement surface.

Abstract: An adjustable support for a firearm includes an extension shaft having a distal end, a proximal end, a central axis, and a plurality of engagement features formed at a plurality of axial locations between the distal end and the proximal end. A housing assembly is configured to house the extension shaft and defines a reference datum. At least one locking member is operatively associated with the housing assembly and is configured selectively engage the engagement features. An actuator is operatively associated with the housing assembly such that translation of the actuator relative to the central axis moves the locking members into and out of engagement with the engagement features on the extension shaft. Rotation of the actuator relative about the central axis moves the distal end of the extension shaft away from the housing assembly.

Abstract: An optical sighting system includes an optical sight having a projected aiming point, a range finder configured to determine a range of an intended impact point, at least one environmental sensor configured to sense at least one environmental condition, and a computing device in communication with the range finder and the environmental sensor to receive the range and the environmental condition from the range finder and the environmental sensor respectively. The computing device includes a computer readable medium having instructions encoded thereon that when executed perform steps for calculating a compensated position for the projected aiming point based on the range and the environmental condition, and providing instructions to an aimpoint compensator to automatically move the projected aiming point to the compensated position.

Abstract: A trigger assembly including a housing having an upper portion, a lower portion, a front portion, a rear portion, a first side portion and a second side portion. A recess is defined in the housing between the upper portion and the lower portion. First and second guide channels are defined in the first side portion and the second side portion respectively. A trigger lever is configured to pivot within the housing about a pivot point positioned at least partially within the housing, the trigger lever having a body, a trigger bar extending in a first direction from the body, and a safety bar extending in a section direction from the body. A safety mechanism includes a first guide rail, a second guide rail spaced apart from the first guide rail, and a blocking member extending between the first guide rail and the second guide rail.

Abstract: A magazine configured to receive a plurality of cartridges includes a front portion, a rear portion, and opposing lateral portions between the front portion and the rear portion, the opposing lateral portions including a neck portion, a shoulder portion adjacent the neck portion, and a base portion adjacent the shoulder portion, wherein the neck portion adjacent the shoulder portion has a width that is about 0.005 inches to about 0.04 inches greater than the nominal size of a neck portion of the cartridges.