Abstract: A muzzle-loading firearm having a bolt, a receiver, a striker mounted in the bolt and a breech plug or other part of the receiver carrying a percussion cap in which the bolt has an extension engageable with the breech plug to prevent inadvertent engagement of the striker and percussion cap when the plug is not properly seated. Further, the bolt extension may prevent bolt locking when the plug is not properly seated.

Abstract: A lever action firearm having a receiver, a hammer, a lever pivotal about a fixed point, a bolt and a link which link is pivotal on both the bolt and the lever. The pivotal lever includes first surface means to engage second surface means on the hammer to cause the hammer to be cammed back during unloading. The lever, link and bolt are configured such that when they are in the fire position and are subjected to forces of firing they function as a joint lock to prevent unloading of the bolt and lever. Locking surfaces on the receiver and bolt strengthen the joint lock at the moment of firing.

Abstract: A firearm frame constructed of plastic material having slide rail guidance members in the forward, central and rear portions of the frame. The frame is useful with a barrel unit which is cammed back and down by slide reciprocation and by a cam block which with barrel movement being arrested by the walls of a frame cavity. Forces and energy created in arresting such back and down movement of the barrel and block is transferred to the frame by the block hitting the frame cavity. A slide stop pin passing through openings in the frame and cam block also assist in transferring energy to the frame. Forces causing the slide to move upward during the arresting of barrel and block is prevented buy the rail guidance members. The trigger rotates about a trigger trunnion located in such frame cavity below the cam block.

Abstract: An autoloading firearm having a reciprocating bolt, a cocking lever and firing pin which bolt and firing pin are locked by a locking lever until the trigger is pulled or until the cocking lever of the bolt is manually pulled back. A linkage operably controlled by the trigger causes the locking lever to unlock the bolt and firing pin when the trigger is pulled.

Abstract: A method of manufacturing a firearm part and the part so manufactured in which the part is molded in a mold having secured therein an insert unit and after demolding a portion of such insert unit is removed to create an identification surface.

Abstract: A device or arrangement for automatic firearms in which a transverse rotatable element is mounted in the slide is operable to move by camming action the firing pin partially forward to avoid being struck by the hammer, all prior to its further functioning to rotate the sear to release the hammer. The device also prevents further movement forward of the firing pin during rotation and the device may include means to hold it in its firing-pin-forward position.

Abstract: An elongated configured spring which biases the trigger bar of a pistol rearwardly and upwardly and engages the slide top latch to prevent its transverse movement. The spring is anchored in the frame and trigger bar under tension. The spring is long and narrow requiring little space in the firearm.

Abstract: Reinforcement elements are attached to the exterior surface of the slide of an automatic weapon to prevent cracking of the slide at its most vunerable locations.

Abstract: An ejector mounting arrangement in a pistol frame cavity readily disassembled in which a pivot pin unit includes spring loaded detents engageable in holes in the cavity walls. The holes communicate with the exterior of the pistol so the detents can be pushed into the cavity to allow the ejector and pin unit to drop out. The ejector may also hold the hammer pin in place.