G&G Combat Machine M4A1 Carbine Airsoft AEG Rifle (Color: Desert Tan)SPECIFICATIONS: OPERATION: ELECTRIC AUTOMATIC FIRING MODES: SEMI AUTOMATIC AND FULL AUTOMATIC MUZZLE VELOCITY: 325 345 FPS MAGAZINE: 450 ROUND HIGH CAPACITY (GEAR WIND UP) GEARBOX: FULL METAL HOP UP: ADJUSTABLE WEIGHT: 6 POUNDS FEATURES: SHOOTS OVER 330 FPS, COMPARED WITH ONLY 285 FPS BY THE TOKYO MARUI M4A1 AEG (PRICED @ $270+) THIS AEG IS 100% COMPATIBLE WITH TOKYO MARUI PARTS ENHANCED HIGH PERFORMANCE FULL METAL GEARBOX HIGH TORQUE MOTOR SEMI FULLY