SA-15 Complete Folding Lower Receiver w/Carbine Stock SAO-15 Multi-Cal

Complete AR15 billet lower receiver built on the Shield Arms folding lower receiver. 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 of “MULTI” Compatible with most standard AR-15 components  and most aftermarket parts Take down pin spring and detent hole is threaded for a 6-32 set screw for easy capturing (hardware included) Upper tension screw behind grip screw (threaded hole with hardware included) to adjust any “slop” out of vertical fit between upper and lower Threaded bolt catch pin (Threaded hole and hardware) Buttstock: B5 Systems Bravo EDT Designated Marksman w/ Duplex Trigger Bow Safety: Radian Safety Selector Mil-Spec End Plate & Castle nut Grip:  B5 Systems Weight: 2.45 lbs