Shield Arms Stripped Billet 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)