Product Description San Tan Tactical's AR15 Barrels are made from 4150 Chrome Moly Vanadium, coated in H&M Blacknitride+ for increased wear resistance, chambered in 5.56 NATO ammo. AR-15 6mm ARC Barrel | Int Length 14.5" at San Tan Tactical Browse all San Tan Tactical deals $249.00 In Stock at San Tan Tactical Price verified today Buy Now at San Tan Tactical Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand San Tan Tactical San Tan Tactical