Results for 5.56x45mm NATO UPPERS

Sons of Liberty Gun Works AR-15 L89 Complete Upper Receiver 5.56x45mm 11.5" Barrel 10.75" L89 M-LOK Rail

Radian Weapons Model 1 Builder Kit Gray 5.56 10 Handguard

Daniel Defense MK18 AR-15 Pistol Complete Upper Receiver 5.56mm NATO 10.3" Barrel Flat Dark Earth

Faxon AR-15 ARAK-21 Upper Receiver Assembly 5.56x45mm NATO 12.5" Barrel

AR-STONER AR-15 Upper Receiver Kit

Bushmaster Upper M4A3 223 16 inch Black

Del-Ton AR-15 Mid-Length Carbine Kit 5.56x45mm NATO 1 in 7" Twist 16" Chrome Lined Heavy Contour Barrel

Bushmaster Patrolman s Upper 5.56NATO 16 Barrel For AR-15

Aim Sports AR-15 Complete Upper Assembly Kit 5.56x45mm NATO 16 Barrel

HM Defense MonoBloc Upper 5.56 NATO/.223 Rem 12.5 Barrel Mid Length

AR-15 Radian Weapons Builder Kit in Striking Radian Black Finish - Customizable Excellence - R0427

Aim Sports Complete AR-15 Build Kit 5.56x45mm NATO 16 Barrel

FightLite Raptor Dual Feed Upper 16.25" Fits All MIL-SPEC AR-15, M16, and M4 Lowers, 100 Links Included - RPTR-001

Patriot Ordnance Factory P415 Complete Upper OD Green 5.56 16.5 Barrel

Sons of Liberty Gun Works AR-15 L89 Broadsword Upper Receiver Assembly 5.56x45mm 14.5" Cold Hammer Forged Barrel 13.75" L89 M-LOK Rail

Del-Ton M4 Magpul M-LOK Rifle Kit Flat Dark Earth .223 / 5.56 NATO 16-inch Upper and Lower Parts Kit

Sons of Liberty Gun Works M4-L89 14.50" Upper 5.56x45mm, Black

Bushmaster QRC Complete Upper Black 5.56 / .223 Rem 16 Barrel

ATI Milsport 7.50" Upper 5.56x45mm 1:8 M-LOK Rail, Black