Anchor Armament LLC ANCHOR ARMAMENT LLC HAS POF P-415 - GEN III (Semi-Auto) Billet Stripped Lower Receivers in stock. PATRIOT ORDNANCE FACTORY Stripped, semi-auto lower receiver is fully machined from U.S.-sourced 7075 T6 aluminum billet for superb strength and precise dimensions. Extra metal in the right places gives a big payoff in added support and rigidity with minimal extra weight. Accepts mil-spec and aftermarket AR-15 components, so you can select the upper, trigger group, pistol grip, receiver extension, and butt stock that best serve your needs—the perfect foundation for a custom tactical rifle. Integral, over sized trigger guard machined as part of the receiver further enhances structural rigidity and provides plenty of clearance for trigger finger when wearing gloves. Radiused inside and outside edges protect finger from cuts and scrapes when mounting weapon quickly or during extended fire. Flared mag well with smoothly radiused inside corners helps ensure fast reloads, without fumbling, when seconds count. Cut for ambidextrous bolt release to allow strong- or weak-hand operation; right-side button included with receiver. Easy-to-see laser etched, international "fire" and "safe" symbols give the operator instant, intuitive feedback on the weapon's safety status in high-stress situations. Mil-spec hardcoat anodized for additional surface strength and corrosion resistance before application of the hard, self-lubricating Teflon® outer coating that's almost impervious to abrasion and scratches. All heat-treatment, plating, coatings applied by U.S.-owned and operated contractors. SPECS: 7075 T6 aluminum, hardcoat anodized, matte black. Small-pin, .154" (3.9mm) hammer/trigger pin holes. .250" (6.3mm) pivot/take down holes. FFL required for purchase. Only Ground shipping options available. No USPS shipping on this item.