Introducing the new "MOE Marauder" HAR-15 Pistol exclusively from PSA! The MOE Marauder upper is designed to function with a red dot or holographic optic. It does not have provisions for a front sight to be mounted on the barrel. Barrel: 7" 4150V Chrome Moly vanadium steel, nitride treated for durability, and chambered in 5.56 NATO with a 1 in 7" twist. Pistol length gas barrel is finished off with a Magpul MOE M-Lok carbine length handguard, a low profile gas block, and a patent-pending PSA muzzle device designed to hold the handguard endcap in place. Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. 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. 158A(R) 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 chrome-lined and phosphate coated. Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked "MULTI" for caliber. The finish is hard coat anodized. The pistol is finished with Magpul MOE Grip, MOE Trigger Guard, and H&R HAR-15 Adjustable Pistol Stabilizing Blade.