The Elite Force Airsoft EyeTrace line is a big deal. If your favorite configuration of the AR platform happens to be the M4 CRF, you are in luck! The M4 CFRX is the latest in the growing Elite Force EyeTrace airsoft Carbines line. This Competition grade AEG accepts 9.6v to 11.1v, 20C LiPo/NiMH nunchuck batteries for optimal performance and comes with one high-capacity magazine. Along with the built-in EyeTrace tracer unit, you can expect to find an adjustable hop-up, adjustable stock, included front and rear iron sights, Picatinny rail, M-LOK slots, metal gearbox, full-length metal rack teeth, and Tamiya-style battery connections. With a fresh battery and .20g BBs, the EyeTrace M4 CFRX shoots at 400 FPS. Pick the M4 CFRX, some Elite Force Tracer BBs, a few new 9.6V nunchuck batteries, and a smart charger, and you are set to light up the night!