A pistol has a frame having a grip, an elongated slide connected to the frame and operable to reciprocate on the frame between a forward battery position and a rear position, the elongated slide having opposed forward and rear ends, a rear sight connected proximate the rear end of the elongated slide, the frame including a front sight support element at a forward frame end forward of the forward end of the elongated slide when the elongated slide is in the forward battery position, and the front sight support element including a front sight operably registered with the rear sight when the elongated slide is in the forward battery position. The elongated slide may define a passage receiving a barrel defining a muzzle aperture, and wherein the front sight support element defines an opening registered with the muzzle aperture.

A device implementable on a firearm includes a charging handle configured to be mounted on a lateral side of a slide of the firearm by a screw and without removal of a rear sight or a slide cover plate at a breech end of the slide. The charging handle includes a handle member and at least one screw. The handle member is adapted to engage the lateral side of the slide. The handle member has at least one threaded through hole traversing a body of the handle member. The at least one screw is configured to secure the handle member to the slide through the at least one threaded through hole when the at least one threaded through hole is aligned with a tapped hole on the slide.

A device implementable on a firearm includes a charging handle configured to be mounted on a lateral side of a slide of the firearm by a screw and without removal of a rear sight or a slide cover plate at a breech end of the slide. The charging handle includes a handle member and at least one screw. The handle member is adapted to engage the lateral side of the slide. The handle member has at least one threaded through hole traversing a body of the handle member. The at least one screw is configured to secure the handle member to the slide through the at least one threaded through hole when the at least one threaded through hole is aligned with a tapped hole on the slide.

A slide devise for facilitating grasping and pulling a pistol slide rearward during various pistol operations. The slide device facilitates pulling back the pistol slide utilizing relatively little force. The device includes an adaptor and a rack plate interconnected by a sliding dovetail joinery. The adaptor replaces the traditional slide cover plates on conventional striker fired pistols. The rack adaptor has an integral interface shoe, which seats within a complementary channel in the rack plate. The rack plate has a pair of opposed side protrusions or wings that are configured to fit or be engaged by the fingers or hand of the user, so as to allow the user to easily pull the pistol slide rearward.

A pistol with buffer has a frame defining an upper horizontal slide plane, having a forward muzzle end, and defining a receptacle, a slide rail module removably received in a rear portion of the frame receptacle and having a front face, a cross pin engaging the slide rail module to the frame, a buffer received in the frame receptacle and having a rear face abutting the front face of the slide rail module, and a retention portion of the slide rail module configured to contact the buffer to prevent extraction of the buffer when the slide rail module is received in the frame receptacle. The retention portion may be positioned above a selected portion of the buffer to prevent removal of the buffer from the frame when the slide rail module is engaged to the frame by the cross pin. The slide rail module may define a vertical front surface.

A pistol with buffer has a frame defining an upper horizontal slide plane, having a forward muzzle end, and defining a receptacle, a slide rail module removably received in a rear portion of the frame receptacle and having a front face, a cross pin engaging the slide rail module to the frame, a buffer received in the frame receptacle and having a rear face abutting the front face of the slide rail module, and a retention portion of the slide rail module configured to contact the buffer to prevent extraction of the buffer when the slide rail module is received in the frame receptacle. The retention portion may be positioned above a selected portion of the buffer to prevent removal of the buffer from the frame when the slide rail module is engaged to the frame by the cross pin. The slide rail module may define a vertical front surface.

A handguard quick dismantling structure is provided for a toy gun and includes a barrel portion that has a barrel pivoting portion, a handguard portion that has a handguard pivoting portion, a barrel retaining piece including a barrel connecting portion and barrel coupling portion respectively arranged at opposite locations, and a handguard retaining piece including a handguard connecting portion and a handguard coupling portion respectively arranged at opposite ends. The handguard retaining piece is such that when the handguard portion and the barrel portion are combined, the handguard coupling portion is in coupling engagement with and fixed to the barrel coupling portion, and when the handguard portion and the barrel portion are separated, the handguard coupling portion is disengageble from the barrel coupling portion to achieve an effect of quick dismantling of the handguard.

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.

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.

An assembly for a modular, compact firearm includes a universal action and an interchangeable, non-reciprocating barrel. The barrel may directly mount various optical sighting systems and provide integral muzzle compensation and sound suppression capabilities. The firearm utilizes a universal action comprised of a slide assembly, breechblock assembly, recoil assembly, and receiver which mounts a variety of barrel assemblies and assembles into a variety of different grip frames. The action of the firearm utilizes a partially-locked breechblock which amplifies the inertia of a slide.