Abstract: A handgun, including a safety lever for disengaging a sear, the safety lever located under a slide of the handgun and extending along a longitudinal axis within a body of the handgun, wherein the safety lever includes a) a sear switch located external to the body of the handgun, and is configured to be positioned by a user in one of at least two positions along the longitudinal axis of the handgun and configured to move the safety lever with the sear switch to an elected position; (b) a sear tab at a rear end of the safety lever near a sear of the handgun, wherein when the sear switch is in a first position the sear tab does not interfere with the action of the sear and when in a second position the sear tab causes the sear to tilt so that the sear is disengaged and cannot come in contact with a striker of the handgun to fire a bullet.

Abstract: A handgun, including a safety lever for disengaging a sear, the safety lever located under a slide of the handgun and extending along a longitudinal axis within a body of the handgun, wherein the safety lever includes a) a sear switch located external to the body of the handgun, and is configured to be positioned by a user in one of at least two positions along the longitudinal axis of the handgun and configured to move the safety lever with the sear switch to an elected position; (b) a sear tab at a rear end of the safety lever near a sear of the handgun, wherein when the sear switch is in a first position the sear tab does not interfere with the action of the sear and when in a second position the sear tab causes the sear to tilt so that the sear is disengaged and cannot come in contact with a striker of the handgun to fire a bullet.

Abstract: A firearm with tilting barrel-receiver assembly. In one embodiment, the firearm includes a frame and a barrel-receiver assembly pivotably mounted to the frame. The barrel-receiver assembly is movable between an open position and a closed position. A latching mechanism may include a slide plate configured to selectively engage the frame. The latching mechanism is movable between a locked position wherein the barrel-receiver assembly is held in the closed position by the slide plate and an unlocked position wherein the barrel-receiver assembly is movable to the tilted open position. The slide plate may be spring biased into the locked position. An actuator button cooperates with the slide plate for moving the latching mechanism between the locked and unlocked positions.

Abstract: A firearm with tilting barrel-receiver assembly. In one embodiment, the firearm includes a frame and a barrel-receiver assembly pivotably mounted to the frame. The barrel-receiver assembly is movable between an open position and a closed position. A latching mechanism may include a slide plate configured to selectively engage the frame. The latching mechanism is movable between a locked position wherein the barrel-receiver assembly is held in the closed position by the slide plate and an unlocked position wherein the barrel-receiver assembly is movable to the tilted open position. The slide plate may be spring biased into the locked position. An actuator button cooperates with the slide plate for moving the latching mechanism between the locked and unlocked positions.

Abstract: A firearm with slide takedown mechanism and method for use is disclosed. In one embodiment, the firearm includes a frame, barrel, trigger and a reciprocating slide. A takedown lever is pivotably mounted to the firearm and engageable with the slide. In a first blocking position, the takedown lever engages and blocks the rearward path of the slide which is not movable beyond a first position. In a second unblocking position, the takedown lever is pivoted laterally outwards from the frame and disengages the slide. The rearward path of the slide is no longer blocked which may be moved to a second rearward removal position enabling a user to remove the slide and field strip the firearm. In one embodiment, the takedown lever is disposed underneath the frame. The firearm may be a semi-automatic pistol in some embodiments.

Abstract: A firearm with slide takedown mechanism and method for use is disclosed. In one embodiment, the firearm includes a frame, barrel, trigger and a reciprocating slide. A takedown lever is pivotably mounted to the firearm and engageable with the slide. In a first blocking position, the takedown lever engages and blocks the rearward path of the slide which is not movable beyond a first position. In a second unblocking position, the takedown lever is pivoted laterally outwards from the frame and disengages the slide. The rearward path of the slide is no longer blocked which may be moved to a second rearward removal position enabling a user to remove the slide and field strip the firearm. In one embodiment, the takedown lever is disposed underneath the frame. The firearm may be a semi-automatic pistol in some embodiments.

Abstract: An interchangeable barrel system and related method for a pistol includes a barrel insert having an anti-rotation protrusion and a receiver having a complementary configured socket configured for receiving the protrusion. An embodiment of a barrel insert includes a chamber for holding a cartridge and a locking mechanism configured for releasably securing the barrel insert to the receiver. In some embodiments, the locking mechanism comprises a threaded engagement between the barrel insert and receiver. The system allows barrel inserts of different calibers, configurations, and materials to be swapped with the receiver, and vice-versa.

Abstract: An interchangeable barrel system and related method for a pistol includes a barrel insert having an anti-rotation protrusion and a receiver having a complementary configured socket configured for receiving the protrusion. An embodiment of a barrel insert includes a chamber for holding a cartridge and a locking mechanism configured for releasably securing the barrel insert to the receiver. In some embodiments, the locking mechanism comprises a threaded engagement between the barrel insert and receiver. The system allows barrel inserts of different calibers, configurations, and materials to be swapped with the receiver, and vice-versa.

Abstract: A firing pin system for a firearm, including a breech block, a firing pin slidably disposed in the breech block and a single firing pin coil spring adapted to both urge the firing pin toward a cartridge in a barrel of the firearm when the firearm is fired and, subsequent to firing, to urge the firing pin back away from the cartridge such that the firing pin does not protrude through a breach face of a breach block of the firearm subsequent to firing.

Abstract: A firing pin system for a firearm, including a breech block, a firing pin slidably disposed in the breech block and a single firing pin coil spring adapted to both urge the firing pin toward a cartridge in a barrel of the firearm when the firearm is fired and, subsequent to firing, to urge the firing pin back away from the cartridge such that the firing pin does not protrude through a breach face of a breach block of the firearm subsequent to firing.

Abstract: A firearm is provided including a frame having a magazine receptacle, a trigger, and a magazine. A safety device to lock the trigger when the magazine is removed is provided that includes a trigger bow having leaf spring receiver. A leaf spring extends from the frame and has an end that is free to flex perpendicularly to the trigger. The leaf spring flexes based on position of the magazine, from a lock position when the magazine is in the released position to an unlock position when the magazine is in the installed position. The second end of the leaf spring is engaged to the leaf spring receiver to prevent movement of the trigger when the leaf spring is in the lock position and disengaged from the leaf spring receiver to allow movement of the trigger when the leaf spring is in the unlock position.