5.56x45mm NATO Barrels

Sons of Liberty Gun Works SOLGW M4-L89 5.56mm 13.7" Broadsword Upper Rifle w/SF Compatible/ROTEX Mount M4-L89BS-13.7-SF

Sons of Liberty Gun Works SOLGW M4-L89 5.56mm 13.7"Bbl Broadsword Upper Rifle w/HUXWRX Mount M4-L89BS-13.7-XL

Sons Of Liberty Gun Works M4-L89-13.7 M4-L89 5.56mm 30+1 13.70" Black QPQ Button Rifled Barrel, Black Hardcoat Anodize Receiver, Ambidextrous

Sons of Liberty Gun Works SOLGW East India 5.56mm 8.5" Gas Pistol Starter Kit EIC-8.5-300

Anderson .223 Wylde 16a ^3 Lightweight Barrel Mid Length 5.56/.223

Sons Of Liberty Gun Works M48913.7ASRFH M4-89 5.56x45mm NATO 13.70 in Combat Grade Barrel, Black, 12.50 in M-Lok Handguard, P&W ASR QD Flash Hider, Mid-Length Gas System

Sons of Liberty Gun Works AR-15 Barrel 5.56x45mm NATO 13.9" Government Contour 1:7" Twist QPQ

AM BARREL ASSEMBLY RF85 TREATED

ANDERSON 5.56 16IN M4 BARREL - MID LENGTH

ANDERSON RF 85 BARREL 5.56 16IN M4 BARREL CARBINE LENGTH

JL Billet Replacement Barrel Nut Key Seat AR/15 Black

APF Armory AR-15 5.56 Nato Threaded Barrel w/Pinned Adjustable Gas Block 10.5in 1-7 Twist 1/2x28 Black

Dark Storm Industries DS-15 AR-15 Typhoon 5.56x45mm NATO 12.5in Upper Receiver Carbine Length 1-7 Twist 1/2x28 Cerakote Copperhead Brown

Dark Storm Industries DS-15 AR-15 Typhoon 5.56x45mm NATO 12.5in Upper Receiver Carbine Length 1-7 Twist 1/2x28 Cerakote Olive Drab Green

Dark Storm Industries DS-15 AR-15 Typhoon 5.56x45mm NATO 12.5in Upper Receiver Carbine Length 1-7 Twist 1/2x28 Cerakote FDE

Dark Storm Industries DS-15 AR-15 Typhoon 5.56x45mm NATO 10.5in Upper Receiver Carbine Length 1-7 Twist 1/2x28 Cerakote Olive Drab Green

Dark Storm Industries DS-15 AR-15 Typhoon 5.56x45mm NATO 10.5in Upper Receiver Carbine Length 1-7 Twist 1/2x28 Cerakote FDE

Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO 14.5in Complete Upper Receiver Mid Length 1-7 Twist 1/2x28 Cerakote Olive Drab Green

Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO 14.5in Complete Upper Receiver Mid Length 1-7 Twist 1/2x28 Cerakote FDE

Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO 14.5in Complete Upper Receiver Mid Length 1-7 Twist 1/2x28 Anodized Black

Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO 14.5in Complete Upper Receiver w/Pin/ Weld Mid Length 1-7 Twist 1/2x28 Cerakote Olive Drab

Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO 14.5in Complete Upper Receiver w/Pin/ Weld Mid Length 1-7 Twist 1/2x28 Cerakote FDE

Dark Storm Industries AR-15 5.56x45mm NATO Socom 7.5in Threaded AR Barrel Pistol Length 1-7 Twist 1/7 Threaded Nitride Barrel Black

Dark Storm Industries AR-15 5.56x45mm NATO Socom 12.5in Threaded AR Barrel Carbine Length 1-7 Twist Nitride Carbine Gas 1/7 Threaded Black