Shield Arms SA-15 Complete Folding Lower Receiver w/Rifle Stock - Black

Features Built-in folding mechanism for compact storage – NOT an adapter Machined from 7075-T6 aircraft grade billet aluminum Ships with an H2 weight proprietary buffer Accepts standard AR-15 magazines Matte black hard-coat anodized per Mil 8625 Type 3 Class 2 Precision machined magazine well with beveled feed lip for easy mag changes Caliber marking: “MULTI” Compatible with most standard AR-15 components and most aftermarket parts Take down pin spring and detent hole is threaded for a 6-3