Elite Force Airsoft is breaking new ground with the M4 CFRX EYETRACE. The M4 CFRX EYE TRACE has a built-in LED tracer unit so you can light up the night with your favorite EF tracer BB's! With full length M-Loc 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, firing at 400fps, the EF M4 CFRX means business on the airsoft field.