AR Parts in 5.56x45mm NATO

TacFire AR-15 Carbine-Length Gas .223 / 5.56 1:8 Nitride Barrel - 14.5"

Guntec USA AR-15 5.56 Complete Ultralight Series Pistol Kit No Lower Red

Guntec USA AR-15 Bolt Carrier Group BCG Mil-Spec Nickel Boron

Guntec USA AR-15 Micro Slim Flash Can .223/5.56 Flat Dark Earth

GUNTEC PREDATOR A2 FLASH HIDER AR15 BOTTOM HALF CLOSED BLACK

Guntec USA AR-15 Free Floating Handguard Peel Washer Kit 5 Pcs

X PRODUCTS 5.56/9mm Billet Assembled Side Charging Upper Blk

ANDERSON BOLT CARRIER GROUP ASSY 5.56 NATO M16 PROFILE MAG PHOSPHATE BOLT &AMP CARRIER

ANDERSON RF 85 BARREL 5.56 16IN M4 BARREL MID LENGTH

AM BARREL AR15 16 5.56 223REM CAR LENGTH 1-8

Anderson's 5.56 BR Complete Upper Low profile gas block

Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades Anodized Blue

Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades Anodized Purple

Guntec USA AR-15 Finishing Kit Gold Plated

Guntec USA AR-15 Finishing Kit Rainbow PVD

Guntec USA AR 5.56 Cal Extended Takedown Pin Set Gen 2 Gold Plated TDP-SET-G2-GLD

Guntec USA AR-15 Pistol Furniture Set Rainbow PVD

Guntec USA AR-15 Accent Kit Anodized Bronze

Guntec USA AR-15 Accent Kit Anodized Orange

Guntec USA AR-15 Accent Kit Anodized Neon Yellow

Guntec USA AR-15 Accent Kit Anodized Irish Green

Guntec USA AR-15 Accent Kit Anodized Grey

Guntec USA AR-15 Essentials Kit Anodized Grey

Guntec USA AR-15 Accent Kit Cerakote Flat Dark Earth