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.

Trigger module securing apparatus using internally threaded pins and threaded fasteners to secure a trigger module into the lower receiver of a rifle.

A firearm has a receiver with a receptacle. A stock has a projection which is received within the receptacle to mount the stock on the receiver. A spring biased detent holds the stock in engagement with the receptacle. Manual manipulation of the detent allows the stock to be removed from the firearm's receiver.

Methods and systems are provided for a firearm. The firearm may also include features facilitating efficient assembly/disassembly of the action such as a disassembly latch facilitating rapid and efficient removal of the firearm's action assembly and well as efficient action manufacturing methods.

The present invention discloses enhancements for a follower within a magazine for an automatic rifle. The disclosed follower contains mechanisms that will (i) disengage the magazine from the automatic rifle once the last round has been removed from the magazine; (ii) minimize the amount of friction between the follower and the inner wall of the magazine; and (iii) detect if the automatic rifle has been breeched prior to disengaging the magazine from the automatic rifle. The disclosure also provides for a takedown pin that will have selectable positions to allow for a full breech, partial breech, and a normal firing mode.

The present invention discloses enhancements for a follower within a magazine for an automatic rifle. The disclosed follower contains mechanisms that will (i) disengage the magazine from the automatic rifle once the last round has been removed from the magazine; (ii) minimize the amount of friction between the follower and the inner wall of the magazine; and (iii) detect if the automatic rifle has been breeched prior to disengaging the magazine from the automatic rifle. The disclosure also provides for a takedown pin that will have selectable positions to allow for a full breech, partial breech, and a normal firing mode.

Provided is a frame assembly for a pistol. The frame assembly includes a lower frame having a grip formed at a lower side and an upper frame that is assembled on the lower frame and is assembled to a slide. The lower frame has a mounting projection which has a predetermined length and projects upward to a predetermined height in a direction to face the upper frame. The upper frame has a mounting groove which has a predetermined depth and into which the mounting projection is inserted in a direction to face the lower frame. The lower frame and the upper frame are assembled together by a screw which is fastened to penetrate the mounting groove and the mounting projection in this order from an inner side of the upper frame.

Provided is a frame assembly for a pistol. The frame assembly includes a lower frame having a grip formed at a lower side and an upper frame that is assembled on the lower frame and is assembled to a slide. The lower frame has a mounting projection which has a predetermined length and projects upward to a predetermined height in a direction to face the upper frame. The upper frame has a mounting groove which has a predetermined depth and into which the mounting projection is inserted in a direction to face the lower frame. The lower frame and the upper frame are assembled together by a screw which is fastened to penetrate the mounting groove and the mounting projection in this order from an inner side of the upper frame.

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.