100% USA Made. We have these made for us from local manufacturers. Barrel nut requires no timing. Solid lockup once screws are tightened down. Will withstand even the harshest recoil. 9.25 inch AR-15 M-LOK free float handguard MIL-STD 1913 Picatinny rail on top M-Lok Slot on all 7 Sides Made from US sourced 6061 Aluminum Extrusions Hard Coat anodized (Mil-A-8625) 100% Made in the USA Barrel Nut and Mounting Screws Included 1.35" ID Black Anodized Finish