Dominate your battlefield competitors with the full metal G&G GC16 M4 Carbine HT electric airsoft rifle. This semi/full automatic gun is similar in look and feel to the popular Combat Machine series but features a full metal body that lends a realistic weight and authentic feel to the shooting experience. The GC16 M4 features a removable carry handle that exposes a Weaver/Picatinny rail for mounting rifle scopes, a high-capacity 450 rd magazine and a shot velocity of 340 fps (using .20g BBs). Attach a gun sling on the sling mounts for easy carrying in the battlefield. The adjustable hop-up unit lets you dial in outstanding long range accuracy. Simply pull back on the gun's cocking lever to adjust the trajectory for long range targets.