A configurable blowback bolt system is provided. Embodiments include a two-part configurable bolt assembly having a bolt carrier and a configurable bolt that allows for use with various calibers of ammunition, both rifle and pistol. The configurable bolt may also eject cartridges to the right or left side of the rifle by moving the extractor to one or the other side of the bolt. A buffer may be included as part of the configurable blowback bolt to shorten the stroke based on the caliber of ammunition being fired with the configurable blowback bolt system.

A configurable blowback bolt system is provided. Embodiments include a two-part configurable bolt assembly having a bolt carrier and a configurable bolt that allows for use with various calibers of ammunition, both rifle and pistol. The configurable bolt may also eject cartridges to the right or left side of the rifle by moving the extractor to one or the other side of the bolt. A buffer may be included as part of the configurable blowback bolt to shorten the stroke based on the caliber of ammunition being fired with the configurable blowback bolt system.

A rotating gun bolt assembly includes a main body subassembly and a head subassembly. The main body subassembly including a helical receiving pocket. The head subassembly includes a head end and a rear end. The rear end of the head subassembly includes a helical tang extending from the rear end and mated with the helical receiving pocket in the main body subassembly. The helical tang includes a straight side, a distal edge and a helical side. The straight side extends perpendicular from the rear end of the head subassembly. The distal edge extends perpendicular to the straight side, where the distal edge is parallel with the rear end of the head subassembly. The helical side extends helically from the rear end of the head subassembly to the distal edge of the helical tang.

A rifle has a fixed main body including a barrel, a receiver with an upper opening, and a breech element. A carriage assembly is axially movable between an advanced shooting configuration and a retracted rearming configuration, and vice versa. The carriage assembly includes an assembly body positioned on the receiver at the upper opening, which is axially slidably movable, having a through housing extending transversally, a firearm handle with an outer portion grippable and an inner portion shaped for complementarily housing in the through housing, being insertable both sides, and a shutter group partially accommodated in the assembly body, including a shutter body and a shutter head. The shutter head is mountable onto the shutter body in first and second angular positions, which are reciprocally inverted. The rifle is configurable for a right-handed or a left-handed person by changing the position of the firearm handle and the shutter head.

A rifle has a fixed main body including a barrel, a receiver with an upper opening, and a breech element. A carriage assembly is axially movable between an advanced shooting configuration and a retracted rearming configuration, and vice versa. The carriage assembly includes an assembly body positioned on the receiver at the upper opening, which is axially slidably movable, having a through housing extending transversally, a firearm handle with an outer portion grippable and an inner portion shaped for complementarily housing in the through housing, being insertable both sides, and a shutter group partially accommodated in the assembly body, including a shutter body and a shutter head. The shutter head is mountable onto the shutter body in first and second angular positions, which are reciprocally inverted. The rifle is configurable for a right-handed or a left-handed person by changing the position of the firearm handle and the shutter head.

A firearm includes a barrel having a breech end. A receiver is engaged with the breach end of the barrel and defines a chamber. A vent path is through the barrel downstream from the breech end. A latch is downstream from the vent path. A bolt is at least partially inside the chamber. The bolt has a locked position to prevent the bolt from moving away from the breech end of the barrel and a released position that allows the bolt to move away from said breech end of the barrel.

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Firearms including a slide, an ejector and an extractor assembly, which extractor assembly includes at least one stirrup-shaped extractor, a plunger and a biasing element. Production of such firearms is easier, and their assembly and/or disassembly is simpler, where the plunger includes a plunger body and a plunger extension, a frame is provided for mounting the biasing element and at least the plunger body, the slide includes a receiving groove for the frame, and the slide includes a maintenance bore which, in the installed state, penetrates the slide from below in the direction of the receiving groove and is provided in the region of the plunger body.

Firearms including a slide, an ejector and an extractor assembly, which extractor assembly includes at least one stirrup-shaped extractor, a plunger and a biasing element. Production of such firearms is easier, and their assembly and/or disassembly is simpler, where the plunger includes a plunger body and a plunger extension, a frame is provided for mounting the biasing element and at least the plunger body, the slide includes a receiving groove for the frame, and the slide includes a maintenance bore which, in the installed state, penetrates the slide from below in the direction of the receiving groove and is provided in the region of the plunger body.