The present application is directed to a firearm including an action spring and a buffer assembly including a buffer body defining a counterweight bore having a first length and a counterweight received within the counterweight bore. The buffer body has a first end defining a face and a second end. The counterweight has a second length less than the first length. A buffer bumper is supported on the second end of the buffer body and a buffer pad is positioned within the counterweight bore between the counterweight and the first end of the buffer body. A bolt carrier is positioned to engage the face of the buffer body. An action spring is positioned about the buffer body and extends between the receiver extension of the firearm and the buffer body.

The present invention relates to a firearm, which includes a receiver and a barrel mountable to the receiver. A slide is mountable to the receiver so as to be movable between an open position and a closed position. A locking element is operatively associated with the barrel. The locking element is displaceable between an inactive position and an active position whereby, when the locking element is in the active position, the locking element engages the slide such that movement of the slide towards the open position is inhibited.

A firearm is disclosed. The firearm can include an upper receiver that includes a bolt. The bolt can include at least one displaceable biasing member that is configured to bias the bolt in a forward state when the at least one biasing member is in an initial state. The bolt can also include a locking wedge that is configured to bias the at least one displaceable biasing member in the initial state. The at least one displaceable biasing member is configured to be displaced from the initial state to a displaced state when a sufficient amount of force is exerted on the at least one displaceable biasing member from the bolt so that the bolt can transition from the forward state to a backward state.

A firearm is disclosed. The firearm can include an upper receiver that includes a bolt. The bolt can include at least one displaceable biasing member that is configured to bias the bolt in a forward state when the at least one biasing member is in an initial state. The bolt can also include a locking wedge that is configured to bias the at least one displaceable biasing member in the initial state. The at least one displaceable biasing member is configured to be displaced from the initial state to a displaced state when a sufficient amount of force is exerted on the at least one displaceable biasing member from the bolt so that the bolt can transition from the forward state to a backward state.

Firearm comprising a projectile barrel (15), a firing chamber body (16) fixed to the barrel, a breech mechanism (12) for loading a projectile in the firing chamber and ejecting the spent cartridge from the firearm after detonation, a mobile bolt (1), and a receiver structure (13) that supports and guides the mobile bolt. The mobile bolt comprises lateral bearings projecting laterally from opposite sides of the bolt, a first pair of lateral bearings (4, 4) positioned towards a front portion of the bolt and a second pair of the lateral bearings (10, 10) positioned towards a rear portion of the bolt. The receiver structure comprises sidewalls (2, 2) each have bolt bearing raceway grooves (3, 3) slidably receiving and guiding the lateral bearings of the bolt, wherein a profile of a first portion (3a) of the bolt bearing raceway groove defines a non-constant height (H(y)) between upper and lower guide edges (18, 19) that varies as a function of the distance (y) from the firing chamber body (16), said profile comprising a velocity control portion with a slope (P) configured to impart a braking effect on the bolt during its sliding movement to slow down the rate of fire.

Firearm comprising a projectile barrel (15), a firing chamber body (16) fixed to the barrel, a breech mechanism (12) for loading a projectile in the firing chamber and ejecting the spent cartridge from the firearm after detonation, a mobile bolt (1), and a receiver structure (13) that supports and guides the mobile bolt. The mobile bolt comprises lateral bearings projecting laterally from opposite sides of the bolt, a first pair of lateral bearings (4, 4) positioned towards a front portion of the bolt and a second pair of the lateral bearings (10, 10) positioned towards a rear portion of the bolt. The receiver structure comprises sidewalls (2, 2) each have bolt bearing raceway grooves (3, 3) slidably receiving and guiding the lateral bearings of the bolt, wherein a profile of a first portion (3a) of the bolt bearing raceway groove defines a non-constant height (H(y)) between upper and lower guide edges (18, 19) that varies as a function of the distance (y) from the firing chamber body (16), said profile comprising a velocity control portion with a slope (P) configured to impart a braking effect on the bolt during its sliding movement to slow down the rate of fire.

The present invention relates to a gun (1) with a barrel (4) which proximally delimits a firing chamber (6), and a slide (8) translatable between a forward configuration in which it closes the firing chamber (6), and a rearward configuration in which it is distanced from the barrel (4) to open said chamber (6). The orientation of the firing chamber (6) in the forward configuration and in the rearward configuration is substantially parallel to the longitudinal axis (X). The gun (1) further comprises a locking device (10), which in the forward configuration acts so as to join the barrel (4) and the slide (8) and in the rearward configuration releases the slide (8) to enable its backward movement. The locking device (10) comprises at least one locking projection (12, 14) which, when the slide (8) and the barrel (4) are reciprocally released, guides the slide (8) in translation.

The present invention relates to a gun (1) with a barrel (4) which proximally delimits a firing chamber (6), and a slide (8) translatable between a forward configuration in which it closes the firing chamber (6), and a rearward configuration in which it is distanced from the barrel (4) to open said chamber (6). The orientation of the firing chamber (6) in the forward configuration and in the rearward configuration is substantially parallel to the longitudinal axis (X). The gun (1) further comprises a locking device (10), which in the forward configuration acts so as to join the barrel (4) and the slide (8) and in the rearward configuration releases the slide (8) to enable its backward movement. The locking device (10) comprises at least one locking projection (12, 14) which, when the slide (8) and the barrel (4) are reciprocally released, guides the slide (8) in translation.

A firearm is disclosed. The firearm can include an upper receiver that includes a bolt. The bolt can include at least one displaceable biasing member that is configured to bias the bolt in a forward state when the at least one biasing member is in an initial state. The bolt can also include a locking wedge that is configured to bias the at least one displaceable biasing member in the initial state. The at least one displaceable biasing member is configured to be displaced from the initial state to a displaced state when a sufficient amount of force is exerted on the at least one displaceable biasing member from the bolt so that the bolt can transition from the forward state to a backward state.

A firearm is disclosed. The firearm can include an upper receiver that includes a bolt. The bolt can include at least one displaceable biasing member that is configured to bias the bolt in a forward state when the at least one biasing member is in an initial state. The bolt can also include a locking wedge that is configured to bias the at least one displaceable biasing member in the initial state. The at least one displaceable biasing member is configured to be displaced from the initial state to a displaced state when a sufficient amount of force is exerted on the at least one displaceable biasing member from the bolt so that the bolt can transition from the forward state to a backward state.