Elite Force Airsoft is breaking new ground with the M4 CFRX EYETRACE. The M4 CFRX EYETRACE has a built-in LED tracer unit so you can light up the night with your favorite EF Tracer BBs! With a full-length M-LOK hand guard, adjustable stock, and ergonomic grip, all finished in Desert Tan, flip-up and removable sights, and the ability to accept 9.6-11.1v LiPo/NiMH batteries, the M4 CFRX EYETRACE AEG means business on the airsoft field.