Aero Precision AR-15 STS Stripped Lower Receiver - Black

The STS (Short Throw Safety) AR15 Stripped Lower Receiver is the perfect lower to start your build. Custom designed markings accept short-throw safety selectors while maintaining mil-spec dimensions and correct component interface. Selector markings will work with 45, 60 or 90 degree safety selectors.

STS lowers are marked and milled to accept short-throw safety selectors, but will work with standard selectors as well!

Specifications:

• Machined from 7075-T6 forged aluminum
• Anodized Black
• "Cal Multi"
• Works with standard AR15 components and magazines
• Rear takedown pin detent hole is threaded for a 4-40 set screw
• Weight 8.35oz