This M4 Amoeba series AEG from Elite Force Airsoft features custom furniture and receiver styling forward to back. At the back, the crane style stock allows you to install a variety of batteries like the butterfly crane stock style battery. Forward-center is ARES's unique pistol grip that features a comfortable profile along with a special grip texture and a vented base plate to discipate motor heat. The upper and lower receiver of the Amoeba M4 airsoft rifle features a unique design by adding curvature and aesthetic detail, giving it a high-end look. An enlarged magazine catch and improved straight trigger rounds out the lower receiver. There's a 10-inch rail system, allowing you to add accessories such as lights, lasers, action cams, or grips dependent on the configuration you desire. Internally, the AMOEBA comes straight from the box with quality internals. The gearbox is compatible with the aftermarket ARES fire control unit (not included) for programmable burst fire. Inside is a MOSFET so each shot is even and consistent with one full rotation of the gears. Internally this Elite Force AEG also features high-end metal gears and high strength polymer piston parts that maximize performance and durability. Lastly, it has a 6.03mm tight-bore barrel which adds to the AEG's performance. Comes with one magazine. Battery and charger not included.