Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: A breech cover interlock coordinates the motion of a breech cover with the motion of the fore end of a pump action firearm. The interlock features an action bar which is connected to the fore end and has a catch which is engaged by a latch mounted with the cover on a movable buttstock. Engagement between the catch and the latch prevents the buttstock and cover from moving and thereby exposing the firearm's breech while the firearm's action is in battery as evidenced by the position of the fore end. Motion of the fore end out of battery disengages the latch and catch and permits the cover to be moved out of overlying position with the breech to permit access to the breech to clear a malfunction.

Abstract: Provided is an apparatus, system, and method for improved control of trigger systems for semiautomatic firearms, which may include a timed locking mechanism incorporated in the trigger system that locks the trigger in the rearward or pulled position after the trigger is pulled and the action of the firearm is cycling or otherwise out-of-battery. Such a mechanism ensures that the necessary steps occur in the proper sequence in the trigger mechanism, preventing unexpected fires, misfires, and jams. Such trigger locking mechanisms have applicability to dual-mode trigger systems as well as semiautomatic firearms generally, and tend to prevent the ability to bump-fire the firearm. Such trigger locking mechanisms may also provide a tactile signal through the user's trigger finger indicating that the firearm is empty by locking the trigger in the rearward position after the firearm fires its last round and the carrier moves and remains in a rearward position.

Abstract: Provided is a side charging handle system for an AR-pattern firearm with an upper receiver having an internal longitudinal bore for receiving a bolt carrier assembly for longitudinal reciprocation therein, a side longitudinal guide slot, and a side charging handle having an engagement pin extending through guide slot to engage the bolt carrier assembly.

Abstract: Provided in various example embodiments is an apparatus, system, and method for improved control of selectable dual mode trigger systems for semiautomatic firearms, which may include a timed locking mechanism incorporated in the trigger system that ensures that the carrier is seated before the hammer is actuated, and that the anti-hammer-follow disconnect does not engage out of sequence. Such a mechanism ensures that the necessary steps occur in the proper sequence in the trigger mechanism, so that at any given time the trigger and firearm are ready for the next desired function to occur. The addition of a timed trigger lock mechanism to the trigger as disclosed herein ensures that the sequence of events in the trigger is maintained in the proper relationship, preventing misfires and jams. Such trigger locking mechanisms have applicability beyond dual-mode trigger systems, and may be applied in various forms to semiautomatic firearms generally.

Abstract: A trigger mechanism for a firearm provides modified and/or adjustable trigger pull length, reduced sear pressure, reduced reset trigger slap, and/or improved engagement of the trigger safety.

Abstract: A firearm includes a bolt mechanism with a bolt configured to receive a firing pin assembly and a bolt head assembly. The bolt head assembly includes a pivoting bolt head and an extractor. The extractor is positioned relative to the bolt such that substantially all forces applied by the extractor to the bolt mechanism are reacted within the bolt head assembly. A biasing member or element can urge a claw portion of extractor towards a distal end of the bolt head.

Abstract: An action lock for a Modern Sporting Rifle pump action firearm is pivotably mounted within the lower receiver of the rifle and has a stop surface that engages a contact surface on the bolt carrier when the bolt carrier is in battery. A cam on the hammer or the trigger engages a cam surface on the action lock when the hammer is released by a pull of the trigger. Cam action rotates the action lock out of engagement with the bolt carrier, unlocking it and allowing the fore end grip to be pumped to cycle the action and extract and eject the spent casing and strip and chamber a new round.

Abstract: A rifle lower receiver has a trigger well and a magazine well. A hammer is disposed in the trigger well and configured to pivot from a first hammer position to a second hammer position in response to moving a trigger from a first trigger position to a second trigger position. A gear member attached to the lower receiver has a predefined number of gear teeth and a locking pin extending from the gear member. A pawl is connected to the trigger and operationally engages the gear member to increment the gear member once per trigger pull. Upon reaching a predefined number of trigger pulls, the locking member locks the trigger. A release lever on the lower receiver is operably configured to advance the gear member one increment to unlock the trigger. A method of dry-fire training is also disclosed.

Abstract: The invention comprises improved designs in a recoil control device comprising a bolt and slider for use in a variety of firearms. In one embodiment, the bolt and slider are articulated so that the displacement of the bolt results in a force component accompanying the slider as it moves along a slider path that traverses a line formed by a linear firing axis of the barrel of the firearm. The slider can have additional structural and functional features, including stabilizing features, vibrational damping elements, elements of the fire control mechanism, and devices to manage the peak impulse of the slider movement as it contacts a base or terminus point.

Abstract: An upper receiver is provided for cooperatively engaging a lower receiver, wherein the lower receiver includes at least a trigger and a lower hammer. The upper receiver includes an upper sear movable in response to movement of the lower hammer, thereby permitting an upper hammer in the upper receiver to actuate a valve in the upper receiver and pass a motive gas to a firing chamber and thereby expel a projectile through a barrel of the upper receiver.

Abstract: The invention comprises improved designs in a recoil control device comprising a bolt and slider for use in a variety of firearms. In one embodiment, the bolt and slider are articulated so that the displacement of the bolt results in a force component accompanying the slider as it moves along a slider path that traverses a line formed by a linear firing axis of the barrel of the firearm. The slider can have additional structural and functional features, including stabilizing features, vibrational damping elements, elements of the fire control mechanism, and devices to manage the peak impulse of the slider movement as it contacts a base or terminus point.

Abstract: A modified toggle link assembly for a lever action rifle including a modified slide channel that, in at least one embodiment, produces a shorter lever stroke and smoother lever cycle. The modified toggle link may also include a modified profile which defines a hump on an upper surface of the rearward link of the toggle link and a corresponding recess on the forward link. This hump allows for the modified geometry of the slide channel. The slide channel may be a modified straight path or a compound, or non-linear path.

Abstract: A modified toggle link assembly for a lever action rifle including a modified slide channel that, in at least one embodiment, produces a shorter lever stroke and smoother lever cycle. The modified toggle link may also include a modified profile which defines a hump on an upper surface of the rearward link of the toggle link and a corresponding recess on the forward link. This hump allows for the modified geometry of the slide channel. The slide channel may be a modified straight path or a compound, or non-linear path.

Abstract: The present invention comprises a new and improved one-piece trigger for a lever action rifle which eliminates trigger flop found on two piece factory triggers. The trigger allows the sear to slip up and past the half and full cock notches on the hammer via an elliptically shaped rigger pivot hole.

Abstract: In a firearm having a trigger assembly with a trigger nose, a hammer with a sear hook and a trigger notch, a disconnector and an automatic sear, an improvement including a notched bifurcating the sear hook of the hammer for receiving the disconnector in a past-cocked position. Further improvements include the trigger notch being offset rearwardly from a center of the pivot point resulting in a slightly changed angle away from an acute engagement angle with the trigger nose.

Abstract: In a weapon, in particular a self-loading pistol, having a barrel (1) and a breech block (4), it being possible for a cartridge (2) to be fired in the barrel (1) by being acted upon by means of a firing pin (7), to identify a fired cartridge (2) and/or to increase the precision during the shot, a contact region (10) of the breech block (4) with the cartridge (2) has at least one prominence (11) and/or recess (12).

Abstract: A semiautomatic weapon with a grip, a breech block and a hammer which is arranged rotatably about a hammer axis, wherein the position of the hammer axis relative to the grip can be varied.

Abstract: A firearm having a trigger which is pivoted to the frame, a hammer which is pivoted to the frame and biased in a forward position, a barrel which is pivotally mounted on the frame so that the breech end of the barrel can be moved between a closed position and an open position. A latch is operatively connected to the hammer and to the trigger for positioning the trigger in its cocked position when the hammer is in its cocked position and for releasably maintaining the hammer in its cocked position, and for releasing the hammer to its firing position upon manual actuation of the trigger. A first locking means is operatively connected to the barrel for preventing the barrel from moving to its open position when the hammer is in its cocked position. A second locking means is operatively connected to the barrel and to the hammer for preventing the hammer from moving to its cocked position when the barrel is in its open position.

Abstract: A gun 10, such as a shot gun or the like, of the type which includes a firing pin carrying bolt 25 which is reciprocally movable relative to the firing chamber 23 of the gun 10 between a first or firing position where the firing pin 29 can engage the rear end of a cartridge 22 located in the firing chamber 23 of the gun 10, to a second or reload position located towards the rear end of the gun 10, the gun 10 being characterised in that it includes at least two locks for positively maintaining the bolt the firing position while and after a shot has been fired and before the gun is reloaded, the locks comprising a first one 39 located rearwardly of and at a level above the firing chamber 23 of the gun 10, and at least one of two further locks, the second one 51 located at a level below and in a position forward of the firing chamber 23, and a third one 77 located at a level below and in a position rearwardly of the firing chamber 23.

Abstract: A rack and pinion system for a lever action firearm provides the rack element as a floating gear and includes a cam lever extension of the lever member. The cam lever extension applies rearward force directly to the bolt body and compresses a spring between the lever member and the rack element. After the bolt breaks free from the locking lugs, force is applied to the rack element by the lever member through the spring, whereby to complete the rearward movement of the bolt.