Results for 5.56x45mm NATO SBR Uppers

HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 11" Barrel

Noveske Crusader AR-15 Barrel 5.56x45mm NATO 12.5" 1:7" Twist Stainless with Low Profile Gas Block and Gas Tube

Noveske Afghan Match AR-15 Barrel 5.56x45mm NATO 14.5" Medium Contour 1:7" Twist Bead Blasted Satin Grey

Noveske Infidel AR-15 Barrel 5.56x45mm NATO 13.7" Medium Contour 1:7" Twist Bead Blasted Stainless with Low Profile Gas Block

Lbe Unlimited Ar137rbk Upper Build Kit 223 Remington

LBE Unlimited Ready Build Kit Complete Upper 5.56 / .223 Rem 12.5 Barrel Mid Length Gas Handguard

Lbe Unlimited Ar75rbk Ready Build Kit 7.5 Chf Barrel

Daniel Defense AR-15 Barrel 5.56x45mm NATO 12.5" Government Contour 1:7" Twist Mil-Spec Heavy Phosphate

Ballistic Advantage Performance Series AR15 Barrel 5.56 13.7 Barrel

Daniel Defense GL/SSC URG AR-15 Complete Upper Receiver 5.56x45mm NATO 12.5" Barrel

Geissele Automatics Super Duty MOD1 5.56 12.5 Barrel w/ HuxWrx Flash Hider

Ballistic Advantage Performance Series Barrel Black 5.56 11.3 Carbine

BA Products Modern Series Barrel Black 14.5-inch

Sons of Liberty Gun Works Liberty Fighting AR-15 Barrel 5.56x45mm NATO 14.5" Medium Contour 1:7" Twist

Noveske Commando 5.56x45mm NATO AR-15 Barrel 11.5" Mid-Length .750 Gas Block Stainless Steel

LBE Unlimited Cold Hammer Forged Barrel 5.56 13.7 Threaded Barrel Mid-Length for AR-15

Sons of Liberty Gun Works Liberty Fighting AR-15 Barrel 5.56x45mm NATO 11.5" Medium Contour 1:7" Twist

Geissele CHF AR-15 Barrel 5.56x45mm NATO 13.9" Geissele Contour 1:7" Twist Manganese Phosphate

Geissele CHF AR-15 Barrel 5.56x45mm NATO 14.5" Geissele Contour 1:7" Twist Manganese Phosphate

Sons of Liberty Gun Works M4-L89 Complete Upper 5.56 11.5 Threaded Barrel w/ L89 Rail

Noveske Afghan AR-15 Barrel 5.56x45mm NATO 14.5" Lightweight Contour 1:7" Twist Cerakote with Headspaced Bolt and Low Profile Gas Block

Geissele CHF AR-15 Barrel 5.56x45mm NATO 14.5" Heavy Contour 1:7" Twist

Noveske EXTRA THICC Commando 5.56x45mm NATO AR-15 Barrel 11.5" DDF Contour Mid-Length .9375 Gas Block Stainless Steel

Noveske Infidel Barrel Silver 5.56 13.7 Threaded Barrel