Security & law enforcement purpose 12 gauge, 3" / 76 mm chamber tactical semi automatic shotgun shotgun. Fast Loading System & Smart Valve Piston. Magazine cut-off system for single shot. Fixed cylinder choke 18" (46 cm) or 20" (51 cm) slug barrel for shot or slugs. Flash suppressor and additional muzzle cap is included. Ghost ring adjustable rear sight integrated on the picatinny rail and adjustable front sight with fiber optic sights. 2-Shotshells holder insert on stock for emergency. Flash suppressor and additional muzzle cap is included. - CHAMBER 12GA 3" - MAGAZINE 5rd with 2 3/4" shells - BARREL Black chrome finished Ni-Cr-Mo steel Flash Supressor fitted - SIGHTS Ghost ring, fiber optic, adjustable rear & front - STOCK Polymer pistol grip stock with 2rd shotshell holder