Bushmaster V Match upper receiver complete with ejection port cover and forward assist) has been specially machined from a 7075T6 aircraft aluminum forging to include an integral dovetail mounting rail. Also, A J&T 16” Groove, RH twist, button rifled, 1x9 twist, black oxide, crowned muzzle. Complete gas assembly M4 Hand guards with weaver rail and broom handle. Only 100 rounds have been shot through it. Asking 400.00 or make offer.