Lower Receiver

US12687355 - Firearm with integrated lower receiver components

Firearms with integrated lower receiver components have a bolt hold open element movably connected to a frame to the rear of a magazine well and configured to move between a protruding position operable to restrain a bolt assembly rearward of the magazine well, and a retracted position operable to enable the bolt assembly to move forward beyond a rear portion of the magazine well, an elongated link connected to the bolt hold open element, a forward portion of the elongated link extending forward of the magazine well and having an actuator portion extending above the magazine well and configured to be actuated by a magazine follower, the elongated link having a first elongated portion received by the frame to rotate, the elongated link having an arm extending laterally from the first elongated portion and having a free end movable between an elevated and lowered position and including the actuator portion.

US12385702 - Jig for manufacturing of firearm lower receiver

An improved jig for manufacturing a firearm lower receiver is comprised of a power tool mount; an adapter; a guide plate with plate screws; a rear support with mounting screws; a front support; and at least one of a carriages with at least one locating pin. A guide plate is disposed below the top surface of a lower receiver in conjunction with an adapter. The jig is a universal fitment and includes a bearing to support a rotary tool and at least one guiding feature can be used to facilitate in the guidance of the rotary tool without placing the rotary tool in direct contact with any of the guidance features. A removable locating pin is situated a long the front and rear takedown pin holes of a firearm receiver that is not threaded and is provided with at least one of a pull, string or other handle.

USD1087278 - End cap plug for a lower receiver of a firearm

USD1084202 - Lower receiver for firearm