5.56x45mm NATO Gun Parts

ABC RIFLE COMPANY AR-15 Micro Pistol Build 5.56x45mm NATO 5in Barrel 4in M-LOK Handguard Upper Receiver Sniper Grey

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

WBP 800M Rear Sight Assembly - AKM 5.56

WBP Forged 5.56 AKM Barrel Trunnion

VKTR Industries VK-1 5.56x45mm NATO 11.5 inch Upper Receiver Heavy Carbine Length 1-7 Twist FDE

VKTR Industries VK-1 5.56x45mm NATO 11.5 inch Upper Receiver Heavy Carbine Length 1-7 Twist Armor Black

VKTR Industries VK-1 5.56x45mm NATO 13.7 inch Upper Receiver Heavy Carbine Length 1-7 Twist No Muzzle Device FDE

VKTR Industries 13.7in VK-1 Complete AR-15 Upper w/ SOLGW Nox Muzzle Device Cerakote Sniper Grey

Q Honey Badger Two-Piece Bolt Carrier Group Black

Harrington & Richardson M16A2 Stripped Upper Receiver w/ M4 Feed Ramp, Black

DPMS A2 Flash Hider 5.56x45mm NATO/.223 Remington 1/2x28 Phosphate Black

DPMS 5.56x45mm NATO Crush Washer One Size

DPMS AR-15 Mil-Spec Firing Pin One Size

Harrington & Richardson XM177E2 Flash Hider and Grenade Ring

Harrington & Richardson M16A2 Stripped Upper Receiver, Black

Harrington & Richardson Retro 723 14.7" AR-15 Barrel Assembly 5.56 1:7 Carbine Length

Harrington & Richardson Retro M16A1 Stripped 20" Barrel Assembly

DPMS A2 Flash Hider w/Crush Washer 5.56x45mm NATO/.223 Remington 1/2x28 Phosphate Black

DPMS CAR-15 Lower Build Kit - ODG

Shaw Barrels AR-15 Barrel 5.56x45mm NATO 10.5" Lightweight Contour 1:7" Twist Nitride

Shaw AR-15 5.56 NATO Threaded Barrel 13.9in No Flute Lightweight Profile 1-7 Twist 1/2-28 Thread Matte Stainless

Shaw AR-15 5.56 NATO Threaded Barrel 10.5in No Flute Lightweight Profile 1-7 Twist 1/2-28 Thread Matte Stainless

Shaw AR-15 5.56 NATO Threaded Barrel Straight Flute 20in HBAR Profile 1-7 Twist 1/2-28 Thread Matte Stainless