5.56x45mm NATO Gun Parts

Faxon AR-15 Duty Series Gunner Complete Upper Receiver Assembly 5.56x45mm NATO 16" Barrel

VKTR VK-1, 5.56mm, 13.7 w/ P&W HUXWRX Flash Hider Muzzle Device, Sniper Grey, Complete Upper

AMERICAN TACTICAL IMPORTS MilSport 5.56x45mm 7.5" Black Nitride Barrel

Geissele Super Duty Mod1-A 5.56x45mm NATO Pistol 11.5" Threaded Barrel 0 Round Desert Dirt Pistol Brace

Geissele Super Duty AR-15 Barreled Upper Receiver 5.56x45mm NATO 16" Heavy Barrel 0.750 Gas Block Stripped Desert Dirt

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm 14.5" Pinned and Welded HBAR Barrel M-LOK Desert Dirt

FAB Defense MOJO Improved Mag-Well Mask Crusader Cavalier Black

Sons of Liberty Gun Works M4-EXO3 5.56mm 14.5" Bbl Mid Gas EXO3 Rail P&W ASRFH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4EXO3-556-145-ASR

Sons of Liberty Gun Works M4-EXO3 5.56mm 14.5" Bbl Mid Gas EXO3 Rail No Muzzle Dev Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4EXO3-556-145-NMD

Sons of Liberty Gun Works Mk1 CAR, 5.56mm, 11.5 Chrome Lined Barrel, 1- 30rd Magazine, Black Ano, Short Barreled Rifle

Sons of Liberty Gun Works SOLGW L89 5.56mm 12.5" No BCG/CH Upper Receiver M4L89UPPER-12.5-556

Anderson Manufacturing AM-15 Complete AR-15 Pistol Lower Receiver

Colt LE6920EPRII 5.56mm 16.1" Bbl Sights Matte Black Upper Receiver Conversion Kit LE6920-EPRII-CK

LWRC IC-A5 SBR Patriot Brown 5.56 10.5 Barrel 30-Rounds

ODIN Works AR-15 OTR Billet Complete Lower

POF-USA AR-15 P415 Edge Complete Upper Receiver 5.56x45mm NATO 10.5" Barrel 9" Edge M-LOK Hanguard Tungsten

Rock River Arms AR-15 Complete Upper Receiver 5.56x45mm 10.5" Barrel

Rock River Arms AR-15 Coyote Complete Upper Receiver 223 Remington (Wylde) 16" Chrome Moly Barrel 12.5" M-LOK Handguard Black

Aero Precision M4E1-T SM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE

Aero Precision M4E1-E EQ15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Anodized Black

AERO PRECISION M4E 5.56 NATO (Multi Caliber) Complete AR15 Lower Receiver w/ MOE Grip & STR Stock

Aero Precision M4E1 Builder Set w/ 9" ATLAS R-ONE M-LOK Handguard - FDE Cerakote

Aero Precision M4E1-E Complete Upper 14.5in 5.56 M4 Carbine Barrel EM-12 Handguard Gen 2 Cerakote Flat Dark Earth

AERO PRECISION M4E1 Threaded Complete Upper, 16" 5.56 M4 Barrel