AR Parts in 5.56x45mm NATO

Guntec USA AR 5.56 Cal Extended Takedown Pin Set Gen 2 Rainbow Pvd

LBE UNLIMITED Cold Hammer Forged Barrel 5.56 16.25" 1:7 Mid Blk

SOLGW SWAMP FOX UL 14.7" 5.56 URG

Forward Controls Design MARS-L 5.56x45mm NATO Augmented Bolt Catch/Release Serrated Black ABC/R v3 MARS-L

Forward Controls Design RHF-C AR-15 M-LOK Handguard - 11.5", FDE

Ar-15 Combat Fsb 5.56x45 Nato Rifle Barrel - Combat Fsb 5.56x45 Nato 20'''' Government Profile 1-7 Twist

V2 Cold Hammer Forged 5.56x45 Nato Rifle Barrel For Ar-15 - Combat 5.56mm 14.5'''' V2 Profile 1/2''''x28 Chf Cmv 1-7 Twist

V2 Combat Grade 5.56x45 Nato Rifle Barrels For Ar-15 - Combat 5.56x45 Nato 12.5'''' V2 Profile 1/2''''x28 Cmv 1-7 Twist

Ar-15 Combat Grade Barrels - Combat 300 Aac Blackout 13.9'''' Drp Profile 5/8x24 1-7 Twist

Sons of Liberty Gun Works SOLGW M4-L89 Broadsword 5.56mm 13.7" No BCG/CH Upper Receiver w/HUXWRX Mount M4L89BSUPPER-13.7-556-XL

Sons of Liberty Gun Works SOLGW M4-L89 Broadsword 5.56mm 13.7" No BCG/CH Upper Receiver w/SF Compatible/ROTEX Mount M4L89BSUPPER-13.7-556-SF

ANDERSON Stripped Upper Receiver Black

Sons of Liberty Gun Works East India Starter Kit Upper 5.56 13.7 Threaded Barrel

Sons of Liberty Gun Works P3 Fighting 5.56mm 16" 5/8x24 Muzzle Thread Intermediate P3 Med Contour Chrome Lined/Phosphate Barrel 16-P3FB-556CL

Sons of Liberty Gun Works P3 Fighting 5.56mm 14.5" 5/8x24 Muzzle Thread Midlength P3 Med Contour Chrome Lined/Phosphate Barrel 145-P3FB-556CL

Sons of Liberty Gun Works P3 Fighting 5.56mm 11.5" 5/8x24 Muzzle Thread Carbine P3 Med Contour Chrome Lined/Phosphate Barrel 115-P3FB-556CL

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 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

Sons of Liberty Gun Works M4-L89 5.56mm 12.5" Bbl Car Gas L89 Rail A2FH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-125-A2

SOLGW M4L89BSUPPER-14.5-CHF-556 UPPER 14.5 556

Heckler and Koch MR556A4 URK Complete Upper 5.56 / .223 Rem 14.5 Barrel SBR

Anderson Stripped Sport Upper Receiver - Black

Griffin Armament Mil-Spec Enhanced Gas Pocket AR-15 Bolt Carrier Group