Abstract: A rate reducer is provided that can be employed in a firearm capable of fully automatic fire to reduce the cyclic rate of firing. The rate reducer can be employed in newly manufactured firearms or in existing firearms by replacing the conventional automatic sear of the firearm with the rate reducer.

Abstract: A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.

Abstract: A trigger activated arm may use a piston moving within a cylinder to dampen gun bolt speed. In some embodiments, gun bolt motion increases pressure within the cylinder bore to dampen rearward gun bolt speed. The pressure may be high enough to unseat the cylinder creating a vent that cylinder fluid exits. In other embodiments, gun bolt motion decreases pressure within the cylinder bore to dampen forward gun bolt speed.

Abstract: A trigger activated arm may use a piston moving within a cylinder to dampen gun bolt speed. In some embodiments, gun bolt motion increases pressure within the cylinder bore to dampen rearward gun bolt speed. The pressure may be high enough to unseat the cylinder creating a vent that cylinder fluid exits. In other embodiments, gun bolt motion decreases pressure within the cylinder bore to dampen forward gun bolt speed.

Abstract: The present disclosure relates to a firing mechanism for a firearm, wherein the firing mechanism includes: a housing having a central bore, a cam surface, and a striker sear slot; a striker sear pivotally connected to the housing and positioned within the striker sear slot, the striker sear having a striker head engagement surface; and a striker head movably positioned within the central bore, the striker head having a striker sear engagement surface configured to interface with the striker head engagement surface of the striker sear.

Abstract: In various embodiments, a buffer retention system may comprise a body, a retention tab and a spring. The body may comprise a generally cylindrical portion and a partially annular guide portion. The generally cylindrical portion may define a channel. The partially annular guide portion may be operatively coupled to the cylindrical portion. The retention tab may be installable in the channel. The retention tab may be configured to protrude through the partially annular guide portion. The spring may be installable within the channel. The spring may be configured to position the retention tab through the partially annular guide portion.

Abstract: The present invention is a firing rate reduction system utilizing a slideable, independent sear disconnector. A straight channel, terminating at the rear end of the bolt carrier, for disconnector movement is created in the bolt carrier. Detents are provided to arrest movement at foreword and rearward limits. The force of inertia moves the independent disconnector into these extreme positions and creates a delay in firing time as additional time is required for the independent disconnector to reach final position.

Abstract: A firing rate reduction system utilizing a slideable, independent sear disconnector includes a bolt carrier having a straight channel terminating at the rear end of the bolt carrier, for disconnector movement within the bolt carrier. Detents are provided to arrest movement at forward and rearward positions. The force of inertia moves the independent disconnector into these extreme positions and creates a delay in firing time as additional time is required for the independent disconnector to reach final position.

Abstract: The present invention is a firing rate reduction system utilizing a slideable, independent sear disconnector. A straight channel, terminating at the rear end of the bolt carrier, for disconnector movement is created in the bolt carrier. Detents are provided to arrest movement at foreword and rearward limits. The force of inertia moves the independent disconnector into these extreme positions and creates a delay in firing time as additional time is required for the independent disconnector to reach final position.

Abstract: The invention pertains to a trigger mechanism for handguns, particularly pistols, with a striking lever (2), a first striking spring (3) that is assigned to the striking lever (2) and serves for acting upon the striking lever (2) in the firing direction, a trigger (12) and a trigger rod (13) that is connected to the trigger (12) and releases the striking lever (2) in a tensioned position in order to fire a shot. In order to generate a constant firing energy with variable trigger resistances and trigger paths, the striking lever (2) is acted upon in the firing direction by a second striking spring (5) that is arranged parallel to the first striking spring (3).

Abstract: A semi-automatic firearm has forward and rearward ends. A receiver has a safety selector aperture, a barrel, a reciprocating loading mechanism and a magazine. A trigger finger and inner portions. The inner portion has a seat with a groove. A disconnector has a hammer hook coupled to the trigger. A trigger mounting pin couples the trigger to the firearm. A trigger disconnector spring couples the trigger and the disconnector. A hammer having an upper striking portion with a disconnector hook receptacle. A hammer mounting pin couples the hammer to the firearm. A hammer spring is coupled to the hammer and hammer mounting pin. A cam body subassembly comprises a cam body housing, a cam and a cam mounting pin. The cam body subassembly is coupled to the firearm. A safety selector is coupled to the firearm. A trigger extender is mated with the upward trigger groove.

Abstract: A firing mechanism includes a hammer, an electrical solid-state full auto sear positioned to engage the hammer in a first electrical state and to disengage from the hammer in a second electrical state, and a controller connected to the electrical solid-state full auto sear for causing the electrical solid-state full auto sear to change from the first electrical state to the second electrical state. The controller may include circuitry for causing the electrical solid-state full auto sear to change from the first electrical state to the second electrical state at a predetermined rate, a predetermined number of times, or for a predetermined period of time. The hammer may include a retractable hammer bent for engagement with the electrical solid-state full auto sear, and the electrical solid-state full auto sear may include a piezoelectric device.

Abstract: A firing rate regulating mechanism for an automatic firearm is provided. The firearm, typically, operates according to the closed bolt principle in which a moving bolt carrier carries a bolt that locks each cartridge in the chamber prior to firing. A moving firing pin and a hammer are provided to strike the cartridge's primer subsequent to locking of the bolt. A time delay unit is provided and is movable between a compressed position and an expanded position. Movement to the compressed position occurs at a first, relatively rapid rate while movement to the expanded position occurs at a second slower rate. A linkage is provided that compresses the time delay unit as the bolt carrier moves routinely and the hammer is retained against forward movement to strike the firing pin until the time delay unit has moved back into an expanded position. According to one embodiment, the time delay unit can be interconnected with an automatic sear that normally engages the hammer.

Abstract: A firearm with a firing mechanism having a hammer, a trigger, a semi-automatic disconnector, an automatic sear, and an electro-mechanical movement mechanism for moving the automatic sear. The trigger and semi-automatic disconnector can be used to fire the firearm in a semi-automatic firing mode. The electro-mechanical movement mechanism can control release of the hammer by the automatic sear, but only after a first firing of the firearm by release of the hammer from a mechanical interlock with the trigger. The electro-mechanical movement mechanism has an actuator attached to a piezoelectric member. The piezoelectric member moves the actuator to move the automatic sear between a hammer holding position and a hammer release position.

Abstract: A process to brake a part of a mechanism includes applying a first torque, applying a second torque and braking the part. The mechanism is urged to alternatingly swivel along a path in a first direction from a first position to a second position by a spring connected to the part. The first torque is applied to the part with the spring to swivel the part in a first direction from the first position to the second position. The first torque is defined by a strain-release force of the spring in a tensed position. The second torque is applied to the part with the spring in a second direction opposite the first direction. The second torque is less than the first torque and is defined by the strain-release force of the spring. The part is braked along at least a part of the path. As a result, the motion of the part can be slowed simply and inexpensively.

Abstract: The invention relates to a loading system for loading a round into a pivoting chamber of a gun. The system comprises a control device for controlling pivoting of the chamber, a feed device for feeding rounds and constituted by a feed station in alignment with the trunnion axis of the gun, a loading station in alignment with the axis of the chamber when it is in its loading position, and means for causing the round to pivot from the feed station to the loading station, and to load it into the chamber.

Abstract: The invention relates to an automatic shoulder arm, such as a machine gun, which can be changed over to semi-automatic fire, burst and automatic fire. In order to reduce the ammunition consumption in the automatic fire mode and to increase the hit rate, the weapon is provided with a mechanism regulating the cyclic rate of fire (27, 21 to 25) which reduces the cyclic rate of fire in the automatic fire position by means of a deceleration member (27) releasing the next shot. A hammer (14) acting upon a firing pin (10) when a shot is released is preferably releasable by deceleration member (27), which hammer is provided with an additional detent (24) being effective in the automatic fire position and disengageable by deceleration member (27) via a deceleration release lever (21). (FIG. 2a).

Abstract: An auto-loading firearm has a firing mechanism that selectively permits (1) conventional semi-automatic operation or (2) automatic operation that permits bursts to be fired at a rate which can be varied between 1 and about 12 rounds per second in response to the finger pressure on the trigger, without release of the trigger or adjustment to the firearm. The mechanism for accomplishing variable rate of fire includes a cam surface on the bolt carrier which causes the trigger to move forward at one point in the firing cycle, an automatic trigger disengager device pivotally mounted on the frame for coopertion with the trigger, and a trigger depressor device, the mechanism being brought into an operating mode by a manually operated selector lever which has a variable fire position and a safety position. In the event that the variable rate mechanism becomes inoperative, as by breakage of a part the firearm will be fail safe and will operate in the semi-automatic mode.