Bushmaster QRC Complete Upper 5.56x45mm NATO 16" Black Nitride Barrel, M-LOK Handguard, Black Anodized - 0040017BLK

This Bushmaster QRC complete upper receiver assembly is chambered in 5.56x45mm NATO and features a 16" black nitride chrome moly vanadium barrel with a 1:7" twist rate. The aluminum receiver is black hard coat anodized with an integrated M-LOK handguard for accessory mounting. Designed for AR-15 platforms, this drop-in upper simplifies customization and assembly.