A modification assembly for a semiautomatic firearm includes a sear disconnector, a hammer catch and a fire control selector that cooperate in enabling the weapon to be selectively fired in either a fully automatic or semiautomatic mode of operation. The sear disconnector prevents the sear piece from catching the hammer during counterrecoil of the bolt if the trigger piece is fully depressed and is carried by and movable with the trigger. The hammer catch is spring biased to a position at which it interrupts forward movement of the hammer during the fully automatic mode of operation and is so arranged in the modified firearm as to be actuated to release the hammer by the movement of the firing pin as the bolt closes during its counterrecoil. The fire control selector is manipulatable to permit the weapon user to select the desired mode of operation and has a bolt catch which during the semiautomatic mode of operation is spring biased to a position at which it catches the bolt during its counterrecoil and thus interrupts its movement into its locked position. Release of the bolt is accomplished during the semiautomatic mode of operation by a separate manipulation of the selector by the weapon user.
A functioning mechanism for a small caliber automatic weapon includes a translatable and rotatable sear, and a rotatable hammer. The sear includes a hooking element adapted to contact a bearing surface of the hammer to render the hammer immobile. Rotating movement of the sear is controlled by the hammer in such a way as to obtain clean contact between the hooking element and the bearing surface.
The present invention is a modified bolt assembly and firing mechanism for creating a replica MG 34 Mauser rifle. The present invention provides for an MG 34 replica which fires from a closed bolt firing weapon, and is capable of only semi-automatic operation. The modified bolt assembly and firing mechanism of the present invention include design elements that deter conversion of the semi-automatic MG 34 Mauser rifle replica into a fully automatic weapon.
A Rapid Fire Trigger Activator and accessory gun stock used to convert any semi-automatic carbine, rifle, or shot gun to nearly the firing capability of an automatic weapon which includes, a main side plate, having a pivot pin; a slide tube; a fore end hand grip; a slotted cam plate; a transfer bar; a swing out safety block; a trigger activator having a spring load plunger pin; and a nylon bearing block. When the fore end hand grip is pumped back and forth it will cause the transfer bar to pivot about the pivot pin which in turn will cause the trigger activator to be displaced towards the weapons trigger by the swing out safety block due to the up and down displacement of a transfer bar slot pin as it follows the cam slot. The trigger of the weapon is always fully accessible and functional whether or not the safety block is in place or not. The swing of the safety block is fitted with a spring loaded plunger pin that allows for its adjustment to various types of weapon trigger configurations and different types of weapon sear actions. On the forward portion of the main side plate is a nylon bearing block which has a frictional slide lock which functions as an additional safety feature to prevent the unintentional movement of the slotted cam plate due to the accidental displacement of the fore end hand grip.
