The AR-Stoner AR-15 A3 Upper Receiver Assembly chambered in 22 Nosler is ready to be assembled to a complete lower and fired! This AR-Stoner upper features a rifle length gas system for use with 22 Nosler ammo, a mil-spec bolt carrier group, a stainless steel 18”, fluted, heavy contour barrel and a lightweight, 15” free float, AR-Stoner M-Lok handguard.
The 22 Nosler's case design takes advantage of the AR-15's modularity, making the conversion from a standard 223 Remington/ 5.56 NATO to the 22 Nosler® simple, requiring only a swap of the upper to the new chambering and switching out to a 6.8 Rem SPC magazine. This effortless two-step retrofit allows shooters to experience the 22 Nosler's performance, while still being able to use their existing 223 bolt carrier group.
Securely mount popular accessories directly to the precision M-Lok cutouts and attach your sling to the integrated QD mounts with this optimum handguard. This sleek and ergonomic free float handguard meets shooters needs without sacrificing strength and performance.
The A3 upper assembly will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, a stainless steel A2 flash hider, and bolt carrier assembly. Supplied without sights, this upper is a great platform for a red dot sight or iron sights (both sold separately).