AR Parts in 5.56x45mm NATO

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

DMA Inc. XTS AR-15 5.56 NATO 4150 CMV Barrel - Carbine - Government - 10.5" - 1:7

DMA Inc. XTS AR-15 5.56 NATO 4150 CMV Barrel - Pistol - SOCOM - 7.5" - 1:7

DMA Inc. XTS AR-15 5.56 NATO 4150 CMV Barrel - Carbine - Government - 16.5" - 1:8

DMA Inc. AR Shark .223 / 5.56 Muzzle Brake - 1/2x28 - Stainless Steel

LBE Unlimited Stripped M4 Barrel, 223 Rem/556NATO, Fits AR15, 16 in, 1:7 Twist, Salt Bath Nitride Black Finish ARBAR-16

Brigand Arms AR-15 Carbon Edge Handguard 9in Black

Guntec USA AR-15 Mil-Spec Bolt Carrier Group Cerakote Purple

Guntec USA AR-15 Mil-Spec Bolt Carrier Group Cerakote Blue

Guntec USA AR-15 Mil-Spec Bolt Carrier Group Cerakote Bronze

Guntec USA AR-15 Mil-Spec Bolt Carrier Group Cerakote Flat Dark Earth

Guntec USA AR-15 Mil-Spec Bolt Carrier Group Cerakote Red

Guntec USA AR-15 Mil-Spec Bolt Carrier Group Cerakote Pink

Guntec USA Socom Series 12 in Suppressor Compatible Handguard Anodized Grey

Guntec USA Socom Series 12 in Suppressor Compatible Handguard Anodized Green

Guntec USA Socom Series 12 in Suppressor Compatible Handguard Anodized Bronze

Guntec USA Socom Series 9 in Suppressor Compatible Handguard Anodized Grey

Guntec USA Socom Series 9 in Suppressor Compatible Handguard Anodized Bronze

Guntec USA AR-15 5.56x45mm NATO Slabside Stripped Billet Upper Receiver Anodized Pink

Guntec USA AR-15 5.56x45mm NATO Slabside Stripped Billet Upper Receiver Unfinished

Guntec USA AR-15 5.56x45mm NATO Slabside Stripped Billet Upper Receiver Anodized Irish Green

Guntec USA AR-15 5.56x45mm NATO Slabside Stripped Billet Upper Receiver Anodized Red

Guntec USA AR-15 5.56x45mm NATO Slabside Stripped Billet Upper Receiver Anodized Grey

Guntec USA AR-15 5.56x45mm NATO Slabside Stripped Billet Upper Receiver Anodized Gold