A method of removing a trigger assembly from a firearm includes placing a projection of a pin removal tool against a first end of a trigger pin of a firearm. The projection of the pin removal tool extends from a first end of a handle of the pin removal tool. The projection is then pushed against the pin so as to cause the pin to partially unseat from its position within the firearm. The pin removal tool is then turned around and the head is engaged to the pin between the first end and a second end thereof via a notch of the head. The pin removal tool is pulled so that the trigger pin is removed from the firearm so as to release a trigger assembly which is at least partially held within the firearm by the trigger pin.

A method of removing a trigger assembly from a firearm includes placing a projection of a pin removal tool against a first end of a trigger pin of a firearm. The projection of the pin removal tool extends from a first end of a handle of the pin removal tool. The projection is then pushed against the pin so as to cause the pin to partially unseat from its position within the firearm. The pin removal tool is then turned around and the head is engaged to the pin between the first end and a second end thereof via a notch of the head. The pin removal tool is pulled so that the trigger pin is removed from the firearm so as to release a trigger assembly which is at least partially held within the firearm by the trigger pin.

A method of removing a trigger assembly from a firearm includes placing a projection of a pin removal tool against a first end of a trigger pin of a firearm. The projection of the pin removal tool extends from a first end of a handle of the pin removal tool. The projection is then pushed against the pin so as to cause the pin to partially unseat from its position within the firearm. The pin removal tool is then turned around and the head is engaged to the pin between the first end and a second end thereof via a notch of the head. The pin removal tool is pulled so that the trigger pin is removed from the firearm so as to release a trigger assembly which is at least partially held within the firearm by the trigger pin.

A mechanically coupled buffer and carrier for a firearm includes an interlocking feature on each of the buffer and carrier such that the buffer and carrier are mechanically coupled to prevent carrier tilt and buffer bounce. The interlocking features are brought together to mechanically couple the buffer and carrier during the assembly process of the firearm as the upper receiver is mounted to the lower receiver.

There is a multi-caliber weapon system. The multi-caliber weapon system comprises: a frame body, with a front body portion, a middle body portion, and a rear body portion, and including: a plurality of frame flanges, each frame flange being coupled to an interior of the frame body and extending upwardly therefrom; a barrel, removably coupled to the front body portion of the frame body, including: a plurality of barrel rings, each barrel ring being disposed around a circumference of the barrel and spaced along a length of the barrel, wherein the barrel rings are disposed on the frame flanges; a chamber, removably coupled to the middle body portion of the frame body, and removably coupled to the barrel; and a bolt, removably coupled to rear body portion of the frame body, removably coupled to the chamber, and including: a bolt face, removably coupled to a front bolt portion.

There is a multi-caliber weapon system. The multi-caliber weapon system comprises: a frame body, with a front body portion, a middle body portion, and a rear body portion, and including: a plurality of frame flanges, each frame flange being coupled to an interior of the frame body and extending upwardly therefrom; a barrel, removably coupled to the front body portion of the frame body, including: a plurality of barrel rings, each barrel ring being disposed around a circumference of the barrel and spaced along a length of the barrel, wherein the barrel rings are disposed on the frame flanges; a chamber, removably coupled to the middle body portion of the frame body, and removably coupled to the barrel; and a bolt, removably coupled to rear body portion of the frame body, removably coupled to the chamber, and including: a bolt face, removably coupled to a front bolt portion.

A safety selector comprises a first hub portion, a second hub portion, and a cam portion connecting the first hub portion with the second hub portion. The first hub portion is generally cylindrical in shape, having opposing faces and an longitudinal surface extending therebetween. Further, the first hub portion is segmented in it opposing faces, creating a first plane in the longitudinal surface. The first hub portion further comprises a pair of spaced apart detent sockets in the longitudinal surface face, a connecting groove extending between the detent sockets, and a detent notch in an outer one of the circular faces exposing one of the detent sockets. The cam portion comprises a recessed face and a cam face. The first plane is substantially parallel with the recessed face.

A link feed assembly. There is: a bolt carrier near a chamber of a modular weapon system; an infeed ramp, coupled to a first side of a weapon frame near the chamber; an outfeed ramp, coupled to a second side of the capon frame near the chamber and opposite the infeed ramp, positioned to form a space between the infeed ramp and the outfeed ramp; and a feed arm assembly coupled to the weapon frame and extending over the space between the infeed ramp and the outfeed ramp, the feed arm assembly functionally coupled to the bolt carrier such that cycling of the bolt carrier forward and backwards causes cycling of the feed arm assembly in a circuitous motion, the feed arm including a grabbing protrusion that is shaped to grab a top portion of a link during cycling of the feed arm assembly.

A link feed assembly. There is: a bolt carrier near a chamber of a modular weapon system; an infeed ramp, coupled to a first side of a weapon frame near the chamber; an outfeed ramp, coupled to a second side of the capon frame near the chamber and opposite the infeed ramp, positioned to form a space between the infeed ramp and the outfeed ramp; and a feed arm assembly coupled to the weapon frame and extending over the space between the infeed ramp and the outfeed ramp, the feed arm assembly functionally coupled to the bolt carrier such that cycling of the bolt carrier forward and backwards causes cycling of the feed arm assembly in a circuitous motion, the feed arm including a grabbing protrusion that is shaped to grab a top portion of a link during cycling of the feed arm assembly.

A pistol having a frame and a slide assembly slideably coupled to the frame is disclosed. The slide assembly includes a plate including a housing and a button slideably coupled to the slide assembly near a rear of the pistol. The plate further includes a bearing surface for contacting the frame to limit the forward travel of the slide relative to the frame.