Results for 5.56x45mm NATO Upper Receivers

Spike s Tactical 16-inch AR-15 Complete Upper 5.56 NATO M4 LE with 9-inch Rail

AR-STONER AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

AR-STONER AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 5" Barrel

FightLite MCR Dual-Feed 16.25" Upper 5.56x45mm 1:7 Mil-Std 1913 Picatinny Rail, Black

Patriot Ordnance Factory Renegade Black 5.56 / 223 Upper 16.5 Inch Upper

Radian Weapons Model 1 Upper Flat Dark Earth 5.56 14 Handguard

Radian Weapons Model 1 Builder Kit Flat Dark Earth 5.56 14 MLOK Handguard

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm 11.5" Cold Hammer Forged Barrel M-LOK Black

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm with Pinned 14.5" Cold Hammer Forged Barrel M-LOK Black

Battle Arms Development Workhorse AR-15 Upper 16 Barrel 5.56 NATO 15 M-LOK Handguard

Battle Arms Workhorse AR-15 Pistol Barreled Upper Receiver 5.56x45mm NATO 9.5" Barrel

AR-STONER AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 7" Barrel

POF-USA AR-15 Minuteman Complete Upper Receiver 5.56x45mm NATO 10.5" Barrel Carbine Length 9" M-LOK Handguard Black

POF USA P415 Edge 5.56 NATO AR-15 Complete Upper 14 M-Lok Rail

Patriot Ordnance Factory Renegade Upper Black 5.56 10.5-inch

Rock River Arms AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

Daniel Defense DD4 RIII S AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 11.5" Barrel Black

Radian Weapons Model 1 Complete Upper Flat Dark Earth .223 Wylde 14.5 Barrel

Radical Firearms Complete Upper Assembly .223 Rem/5.56 16 Barrel MLOK

Spikes Tactical 5.56 NATO M4 LE Upper 16-inch Black LE

Colt AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 11.5" Barrel

Gemtech GVAC Complete Upper 5.56 16 Barrel

FightLite Industries MCR Dual Feed Upper 5.56 12.5 Barrel

Patriot Ordnance Factory Minuteman Complete Upper 5.56x45mm NATO 16.50 Nitride Barrel