This is the new Classic Army full metal M15A4 Advanced Blow Back Tac Carbine is capable of shooting 380FPS with an awesome blowback function. Fit and finish has gone further upmarket with more realistic details and real steel fnishes. The M15-A4 comes with a 300 round high capacity magazine, 8.4v Large battery is stored inside the rear stock. Metal flash hider can be screwed off for installation of a 14mm counter-clockwise threaded silencer. Dust cover auto flips open when gun is fired. Armalite markings are laser engraved on metal body.