5.56x45mm NATO Rifle Parts

Sons of Liberty Gun Works M4-EXO3 5.56mm 16" Bbl Mid Gas EXO3 Rail A2FH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4EXO3-556-16-A2

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

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

Sons of Liberty Gun Works M4-EXO3 5.56mm 11.5" Bbl Car Gas EXO3 Rail A2FH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4EXO3-556-115-A2

Ar-15 Nox Two Chamber Muzzle Brake - Ar-15 Nox Two Chamber 5.56mm With 9 Ports Muzzle Brake

Ar-15 Xeno Nox Muzzle Brake - Ar-15 Xeno Nox 5.56mm 1/2''''x28 Thread Muzzle Brake Bronze

Lantac Raven .223 Wylde AR15 14.5'' Barrel w/Gas Tube LA00234

BUSHMASTER QRC Upper 5.56 NATO 16" - Black

UTG Pro Arwen 17in M-LOK Free Float Handguard Black

Colt Commando AR-15 Barrel 5.56x45mm NATO 11.5" SOCOM Contour 1:7" Twist Parkerized

Colt M4A1 AR-15 Barrel 5.56x45mm NATO 14.5" Government Contour 1:7" Twist Matte

Colt Firearms M4 SOCOM Barrel 5.56 14.5 Stripped

Colt LE6920 AR-15 Barrel 5.56x45mm NATO 16" Government Contour 1:7" Twist Matte with Front Sight Base

Colt AR-15 Barreled Upper Receiver 5.56x45mm NATO 11.5" Barrel

Colt LE6921SOCOM 5.56mm 14.5" Heavy Bbl KAC Rail Matech BUIS Matte Black Upper Receiver Conversion Kit LE6921SOCOMCK

Colt LE6940P 5.56mm 16.1" Bbl Piston One Piece Matte Black Upper Receiver Conversion Kit LE6940PCK

Colt LE6944P 5.56mm 14.5" Bbl Piston One Piece Matte Black Upper Receiver Conversion Kit LE6944PCK

Colt M4 to M5 PDW 5.56 x 45mm 10.3" Heavy Bbl Matte Black Conversion Kit CM556-10H-CK

Colt M4 to M5 Commando 5.56 x 45mm, 11.5" Heavy Bbl Matte Black Conversion Kit CM556-11H-CK

Colt M4 to M5 Carbine 5.56 x 45mm 14.5" Heavy Bbl Matte Black Conversion Kit CM556-14H-CK

Colt M4 to M5 Carbine 5.56 X 45mm 16.1" Bbl Matte Black Conversion Kit CM556-16-CK

Surefire H9 Heavy Buffer for AR15 & AR10 SF-BUFFER-H9

Brownells AR-15 Bolt Gas Ring Silver

Brownells AR-15 Buffer Retainer