A spade grip attachment assembly for securing a spade grip to a minigun clutch includes a first adapter member configured to be secured to the spade grip and a second adapter member configured to be secured to the clutch. The first and second adapter members are configured such that one is receivable in the other. Each adapter member defines a pair of coaxially aligned pin holes that align to form a passage in which a locking pin is receivable when one adapter member is received in the other. The locking pin is receivable in the passage to releasably secure the first adapter member to the second adapter member.

A spade grip attachment assembly for securing a spade grip to a minigun clutch includes a first adapter member configured to be secured to the spade grip and a second adapter member configured to be secured to the clutch. The first and second adapter members are configured such that one is receivable in the other. Each adapter member defines a pair of coaxially aligned pin holes that align to form a passage in which a locking pin is receivable when one adapter member is received in the other. The locking pin is receivable in the passage to releasably secure the first adapter member to the second adapter member.

Firearm bolt assemblies and firearms including the same are described. In embodiments the firearm bolt assemblies are configured to localize compressive forces applied during a transition from an initial position to a firing position to a first cam system on one side of the firearm bolt assembly, and to localize compressive forces applied during a transition from the firing position to the initial position to a second cam system another side of the firearm bolt assembly. Localizing the forces in that manner enables the use of a first cam system that is relatively robust compared to the second cam system.

Firearm bolt assemblies and firearms including the same are described. In embodiments the firearm bolt assemblies are configured to localize compressive forces applied during a transition from an initial position to a firing position to a first cam system on one side of the firearm bolt assembly, and to localize compressive forces applied during a transition from the firing position to the initial position to a second cam system another side of the firearm bolt assembly. Localizing the forces in that manner enables the use of a first cam system that is relatively robust compared to the second cam system.

An assembly for quickly attaching and detaching the guide bar to and from the rotor housing of a minigun is provided. The assembly comprises a guide bar and a rotor housing. The guide bar includes a front end having a pinhole extending through the front end and a rear end having a locking cam. The rotor housing includes a recessed channel configured to receive the locking cam and a spring-loaded lock pin assembly configured to secure the front end of the guide bar. The guide bar is secured to the rotor housing when the locking cam is inserted into the recessed channel and the spring-loaded lock pin assembly secures the front end of the guide bar. The assembly allows the guide bar to quickly be attached and detached from the rotor housing without the need for tools. The rotor housing may be designed without a yoke to reduce weight.

An assembly for quickly attaching and detaching the guide bar to and from the rotor housing of a minigun is provided. The assembly comprises a guide bar and a rotor housing. The guide bar includes a front end having a pinhole extending through the front end and a rear end having a locking cam. The rotor housing includes a recessed channel configured to receive the locking cam and a spring-loaded lock pin assembly configured to secure the front end of the guide bar. The guide bar is secured to the rotor housing when the locking cam is inserted into the recessed channel and the spring-loaded lock pin assembly secures the front end of the guide bar. The assembly allows the guide bar to quickly be attached and detached from the rotor housing without the need for tools. The rotor housing may be designed without a yoke to reduce weight.

A rotor for a firearm having a tracks and locks for interaction with at least one firearm bolt with a rotatable head and carrier body may have a reversible lock structure such that locks may be merely turned around in relation to the rotor when one set of lock bosses is worn by the interaction of the lock and bolts when firing. Drive and delinker gears may also be geometrically keyed to the rotor to efficiently divide torque across the gears and to maintain correct timing for the firearm.

A rotor for a firearm having a tracks and locks for interaction with at least one firearm bolt with a rotatable head and carrier body may have a reversible lock structure such that locks may be merely turned around in relation to the rotor when one set of lock bosses is worn by the interaction of the lock and bolts when firing. Drive and delinker gears may also be geometrically keyed to the rotor to efficiently divide torque across the gears and to maintain correct timing for the firearm.

A delinker (150) for a firearm may feature a modular delinker shaft (152) such that individual components may be replaced when they fail, rather than replacing a whole shaft. Push rods (164) may be keyed to guides (162) to counter centrifugal, inertial, force. Lock rods (170) may be used to accomplish the keyed interaction. Firing bolts may also utilize the keyed construction.

A delinker (150) for a firearm may feature a modular delinker shaft (152) such that individual components may be replaced when they fail, rather than replacing a whole shaft. Push rods (164) may be keyed to guides (162) to counter centrifugal, inertial, force. Lock rods (170) may be used to accomplish the keyed interaction. Firing bolts may also utilize the keyed construction.