Radical Firearms AR15 16" 7.62x39mm FGS Upper
The Radical Firearms M4 Upper Receiver is a flat top, law-enforcement grade, drop in receiver, ready to be mounted to any Mil-Spec AR-15 lower receiver! This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. Comes complete and assembled with Upper Receiver, Forward Assist, Ejection Port Door, RF Barrel Nut, 16" HBAR Barrel and A2 Flash Hider. This upper does not come with a charging handle or bolt carrier, we do however sell these separately. The FGS (Forward Guard Shield) Round Rail keeps your hands cool and provides plenty of room for accessories.