Barrel: 4150V chrome moly steel. Chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a carbine-length gas system. Barrel is Nitride treated for accuracy and durability. A2 profile barrel is finished off with a SST 9` Keymod free-float rail, .750` low-profile gas block, and A2 style flash hider.

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. Uppers include forward assist and dust cover. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt: Full-auto profile bolt carrier group. Shot-peened, mil-spec Carpenter No. 158 steel bolt. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is nitride coated.

Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked "5.56" for caliber. Finish is hardcoat anodized. Pistol 7075-T6 buffer tube is hardcoat anodized and is fitted with a KAK Shockwave Pistol Brace. (stratus)