The AR-STONER LR-308 A3 Billet Upper Receiver Assembly chambered in 243 Winchester is ready to be assembled to a complete lower and fired! This LR-308 billet upper features a bolt carrier group, a heavy countour 20” barrel with a phosphate finish and lightweight, 15” free float M-Lok handguard. Securely mount popular accessories directly to the precision M-Lok cutouts. This sleek and ergonomic free float handguard meets shooters needs without sacrificing strength and performance. The AR-STONER LR-308 Upper is patterned after DPMS and will work with DPMS style parts/lowers. The A3 upper assembly comes complete with charging handle, forward assist, ejection port cover, flash hider, bolt and bolt carrier assembly. Supplied without sights, this upper is a great platform for a precision scope or iron sights (both sold separately).