Abstract: A firing pin system is adapted for underwater shooting and includes a firing pin, a blocking cap, a spring, and a rear sleeve. The firing pin has a striking tip portion, a linking end portion, and a rod body having a head section, a tail section, and a neck section interconnecting and being narrower than the head and tail sections. The blocking cap is sleeved on the neck section and has a flange that is formed with a plurality of notches adapted for allowing passage of water therethrough. The rear sleeve is sleeved on the tail section and has a plurality of outer guiding grooves. The outer guiding grooves are adapted for allowing passage of water therethrough.

Abstract: A locking block is adapted to be mounted in a gun. The gun has a bias spring having a bias spring arm. The locking block includes two side bodies and a connecting body. The connecting body is connected between the two side bodies and has a bottom surface. The connecting body is formed with at least one positioning groove recessed upward from the bottom surface for catching the bias spring arm of the bias spring.

Abstract: A slide stop lever adapted to be disposed in a gun body, and has a pivoting section adapted to be pivoted to the gun body, and a latching section extending rearwardly from the pivoting section. The latching section has a rod portion extending rearwardly from the pivoting section, a latching portion protruding from the rod portion, and a pushed portion protruding from the rod portion and located lower than a top of the rod portion. The pushed portion is adapted to be pushed upwardly to move the latching section upwardly from an initial position to an abutment position, where the latching portion is adapted to be received in a latching groove of the Glock 43 series slide to prevent forward sliding movement of the Glock 43 series slide.

Abstract: A pistol frame is suitable for mounting of a trigger mechanism which includes a trigger mechanism housing having a through channel. The pistol frame includes an upper frame portion defining a rear receiving space, and a rear rail block disposed in the rear receiving space and including a bottom plate, and two side plates extending upwardly the bottom plate. Each side plate has a through hole suitable for aligning with the through channel to permit extension of a trigger housing pin therethrough to thereby fix the rear rail block and the trigger mechanism housing to the upper frame portion. The bottom plate and the side plates cooperatively define at least one receiving space suitable for receiving the extensions.

Abstract: A pistol device includes a handgrip portion having a grip body defining an accommodation space, a snap hole extending through a front side of the grip body, and two positioning holes extending through left and right sides of the grip body. The snap and positioning holes communicate with the accommodation space. A magazine base is detachably disposed on a bottom end of the handgrip portion, and includes a surrounding wall, a snap block detachably engageable with the snap hole, and a connecting portion connected to the surrounding wall and having at least one pin hole extending therethrough. A positioning pin is detachably inserted through the positioning holes and the pin hole to fix the magazine base to the handgrip portion.

Abstract: A frame of a pistol includes a handgrip portion, an upper frame portion, and a trigger guard. The handgrip portion defines a magazine well for accommodating a magazine. The upper frame portion is connected to the handgrip portion, and includes a barrel-receiving section having a bottom wall, two sidewalls extending upwardly and respectively from two opposite ends of the bottom wall, two through slots respectively formed in the sidewalls, a compression spring retaining groove formed in the bottom wall, and a spring plate retaining groove extending forwardly from the compression spring retaining groove. The trigger guard is connected to and is disposed between the handgrip portion and the upper frame portion.

Abstract: A frame of a pistol includes a handgrip portion, an upper frame portion, and a trigger guard. The handgrip portion defines a magazine well for accommodating a magazine. The upper frame portion is connected to the handgrip portion, and includes a barrel-receiving section having a bottom wall, two sidewalls extending upwardly and respectively from two opposite ends of the bottom wall, two through slots respectively formed in the sidewalls, a compression spring retaining groove formed in the bottom wall, and a spring plate retaining groove extending forwardly from the compression spring retaining groove. The trigger guard is connected to and is disposed between the handgrip portion and the upper frame portion.

Abstract: A pistol device includes a handgrip portion having a grip body defining an accommodation space, a snap hole extending through a front side of the grip body, and two positioning holes extending through left and right sides of the grip body. The snap and positioning holes communicate with the accommodation space. A magazine base is detachably disposed on a bottom end of the handgrip portion, and includes a surrounding wall, a snap block detachably engageable with the snap hole, and a connecting portion connected to the surrounding wall and having at least one pin hole extending therethrough. A positioning pin is detachably inserted through the positioning holes and the pin hole to fix the magazine base to the handgrip portion.

Abstract: A pistol frame is suitable for mounting of a trigger mechanism which includes a trigger mechanism housing having a through channel. The pistol frame includes an upper frame portion defining a rear receiving space, and a rear rail block disposed in the rear receiving space and including a bottom plate, and two side plates extending upwardly the bottom plate. Each side plate has a through hole suitable for aligning with the through channel to permit extension of a trigger housing pin therethrough to thereby fix the rear rail block and the trigger mechanism housing to the upper frame portion. The bottom plate and the side plates cooperatively define at least one receiving space suitable for receiving the extensions.