Results for 223 Remington SBR Uppers

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

Colt AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 14.5" Barrel

Ballistic Advantage AR-15 Barrel 5.56x45mm NATO 10.5" Government Contour 1:7" Twist QPQ

Ballistic Advantage Modern Series 5.56 NATO 12.5 Barrel for AR-15

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

Ballistic Advantage AR-15 Barrel 5.56x45mm NATO 14.5" Government Contour 1:7" Twist QPQ

Faxon Duty Series AR-15 Barrel 5.56x45mm NATO 10.5" SOCOM Contour 1:8" Twist Black Nitride

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

LBE UNLIMITED Cold Hammer Forged Bbl 5.56 7.5" Pistol AR-15 Blk

Lbe Unlimited Ar75rbk Ready Build Kit 7.5 Chf Barrel

Colt AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 14.5" Barrel CMR M-LOK Handguard

Lbe Unlimited Ar145rbk 14.5 Upper Build Kit 223 Remington Chf Barrel

Lbe Unlimited Ar125rbk 12.5in CHF Barrel 223 Rem Pistol Length Upper Build Kit

Lbe Unlimited Ar137rbk Upper Build Kit 223 Remington

Faxon Duty Series AR-15 Barrel 5.56x45mm NATO 10.5" Pencil Contour 1:8" Twist Black Nitride

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

Daniel Defense AR-15 Barrel 5.56x45mm NATO 10.3" Government Contour 1:7" Twist Mil-Spec Heavy Phosphate

Ballistic Advantage AR-15 Barrel 5.56x45mm NATO 10.3" Hanson Contour 1:7" Twist QPQ with Low Profile Gas Block

FN Hammer Forged SCAR 16S Barrel 5.56x45mm NATO 10" 1:7"" Twist

Ballistic Advantage AR-15 Barrel 5.56x45mm NATO 11.3" Hanson Contour 1:7" Twist QPQ with Low Profile Gas Block

Daniel Defense AR-15 Barrel 5.56x45mm NATO 14.5" Government Contour 1:7" Twist Mil-Spec Heavy Phosphate

Aero Precision AR-15 Barreled Upper Receiver 5.56x45mm NATO 10.5" Barrel MOE SL Carbine Handguard Black

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 14.5" Barrel 12.7" ATLAS R-ONE Handguard Black

Midwest Industries AR-15 Pistol Barreled Upper Receiver 5.56x45mm NATO 10.5" Barrel