5.56x45mm NATO Rifle Parts

CMC Triggers Barrel 5.56 16 Threaded Barrel w/ Gas Block Gas Tube

Vktr Indrustries VK-1, 5.56mm, 11.5 Barrel w/ A2 Flash Hider, Black, Complete Upper Receiver

White Label Armory AR-15 WLA Home Builder Parts Kit Black

White Label Armory AR-15 Lower Parts Kit Lost Parts Black

VKTR Industries Hammer Forged DI 5.56mm NATO Threaded Barrel 16in Fluted Carbine Length 1-7 Twist Nitride Black

VKTR V11015001102RP BARREL M16 556 13.7 NITRD

VKTR Industries Hammer Forged DI 5.56mm NATO Threaded Barrel 10.5in Fluted Carbine Length 1-7 Twist Nitride Black

Q Sugar Weasel 5.56x45mm NATO 16 inch Upper Receiver Blk

Resolute(R) Mk4 5.56 Nato Assembled Upper Receiver W/P&W Brake - Resolute Mk4 5.56nato Assembl Upper 14.5''''bbl W/P&W Brake Blk

Shaw Barrels AR-15 Barrel 5.56x45mm NATO 12.5" Lightweight Contour 1:7" Twist Nitride

Shaw Barrels AR-15 Barrel 5.56x45mm NATO 16" Midweight Contour 1:8" Twist Nitride

Icon Defense Integral Gas Key BCG Black

CMMG Dissent Mk4 5.56mm 16.1in Upper Group 1-7 Twist 1/2 X 28 TPI .750in 25.5in Tungsten

CMMG Dissent Mk4 5.56mm 16.1in Upper Group 1-7 Twist 1/2 X 28 TPI .750in 25.5in Armor Black

Fortis Manufacturing Billet Dust Cover Carbon Fiber Dark Earth FDE

Fortis Manufacturing Milspec C-158 M16 Bolt Carrier Group 5.56/.223 Carpenter 158 Steel Phosphate Black

Dirty Bird Industries Sand-Cut Bolt Carrier Group .223/5.56 - Chrome

Dirty Bird Industries Sand-Cut Bolt Carrier Group .223/5.56 - DLC

Dirty Bird 16" 5.56 NATO Midlength 416R Fluted Barrel - Nitride 1:8 Twist

Spikes Tactical Upper 5.56 16in Midlength LE w/13.2in M-LOK Rail

Stag 15 5.56 M4 Upper Receivers - Stag 15l Left Hand M4 Phosphate Upper

Stag 15 5.56 7.5in Tactical Nitride Upper Receivers - Stag 15l Left Hand Tactical 7.5'''' Nitride Upper

Stag 15 5.56 7.5in Tactical Nitride Upper Receivers - Stag 15 Tactical 7.5'''' Nitride Upper

Stag 15 5.56 10.5in Tactical Nitride Upper Receivers - Stag 15l Left Hand Tactical 10.5'''' Nitride Upper