5.56x45mm NATO Gun Parts

STNGR AR-15 5.56 NATO 11.5in M-LOK Complete Upper w/12.5in VLCN Handguard BCG & CH Flat Dark Earth Cerakote

STNGR AR-15 5.56 NATO 11.5in M-LOK Complete Upper w/12.5in VLCN Handguard BCG & CH Black Anodized

JARD AR Side Charge .223/5.56 Upper Receiver Assembly Complete Black

JARD AR Left Side Charge Upper Reciever Complete w/o Bolt Black

Dark Storm Industries DS-15 AR-15 Typhoon 5.56x45mm NATO 16in Complete Upper Receiver Mid Length 1-7 Twist 1/2x28 Anodized Black

Grid Defense Complete Upper Receiver 5.56mm 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 9 inch Octagon M-LOK Rail Dimpled Flash Can Tungsten Gray

Grid Defense Complete Upper Receiver 5.56mm 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 9 inch Octagon M-LOK Rail Dimpled Flash Can Tactical Grape

Grid Defense Complete Upper Receiver 5.56mm 10.5 inch Carbine Length 4150 Steel M4 Barrel 1-7 Twist A2 Flash Hider Tactical Grape

Grid Defense Complete Upper Receiver 5.56mm 10.5 inch Carbine Length 4150 Steel M4 Barrel 1-7 Twist A2 Flash Hider Blue Titanium

Grid Defense Complete Upper Receiver 5.56mm 10.5 inch Carbine Length 4150 Steel M4 Barrel 1-7 Twist A2 Flash Hider Burnt Bronze

Ghost Firearms Vital Upper Receiver 5.56x45 NATO 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 7 inch M-LOK Free Float Hand Guard A2 Birdcage Flash

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 10.5 inch Carbine Length 4150 M4 Barrel 1-7 Twist 9 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 10.5 inch Carbine Length 4150 M4 Barrel 1-7 Twist 9 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16in Carbine 4150 M4 Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Birdcage Muzzle

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Free Float Hand Guard A2

Guntec USA AR-15 Stripped Billet Upper Receiver w/9in Ultralight Series M-Lok Handguard Flat Dark Earth

Guntec USA AR-15 Stripped Billet Upper Receiver w/10in Ultralight Series M-Lok Handguard Flat Dark Earth

Guntec USA AR-15 Micro Trident Flash Can w/ Glass Breaker 5.56/.223/9mm 1/2x28 Flat Dark Earth

WMD Guns Upper Assembly Billet AR-15 MLOK HG 15in NiB-X Nickel

WMD Guns AR-15 5.56x45mm NATO 16in M-LOK Upper Receiver Compensator NiB-X Nickel Silver

AR-STONER AR-15 Enhanced Build Kit with Upper Receiver Assembly 5.56x45mm NATO 16" Barrel Mid Length 15" M-LOK Handguard, Complete Lower Parts Kit with Magpul MOE Furniture Black

KAK K15 AR15 Pistol - 5.56 4.75" Barrel 5.5" MLOK Handguard

KAK Industry KF-15 Forged AR15 Lower Receiver