The Airsoft Headquarters give their take on the Elite Force M4 CQB Eye Trace that they carry at their store. This comes equipped with a built-in smart LED tracer unit for lighting up tracer BBs. It boasts a classic quadrail upper, an A2 front sight, and a detachable rear sight aperture. The desert tan stock and grip can accommodate your preferred battery, powered through a cutting-edge MOSFET, and it's compatible with standard M4 style mid-cap and hi-cap magazines. The package includes a built-in LED Tracer Unit, MOSFET, three tan rail covers, a carbine quad rail, an A2 front sight, a removable rear sight assembly, one hi-cap magazine, and an adjustable hop-up. It accepts 9.6v-11.1v LiPo batteries.