Same platform as the Sig P320 / M18 Compact; Replica of the US Army M18 pistol; Optic ready slide with removable rear sight plate; Field strippable with similar balance and weight as the real M18; Metal slide construction with full blow-back action; Includes allen key and spare aligning screws, extra battery for the laser, and user guide; Improved Laser Ammo Real Conversion Barrel which includes the SureStrike RED laser with PST (piston) cap; Powered by Green Gas (NOT included) giving realistic simulation of recoil and cycling of the slide; Note: The newer version (gen 2) is red and blue and allows for longer battery life; Laser Type: Red