AR-STONER AR-15 M4 Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Carbine Length with 15" M-LOK Ultralight Handguard

MidwayUSA is proud to offer this AR-STONER(TM) A3 Upper Receiver Assembly at an exceptional price! This AR-Stoner carbine length upper features a mil-spec bolt carrier group, phosphate finish and an M4 profile barrel. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, flash hider, bolt and bolt carrier assembly.