Aero Precision STS AR-15 Stripped Lower Receiver Anodized 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! Includes: Stripped AR15 Lower Receiver, STS Specifications: Made In America?: Yes Platform: AR15 Material: Machined from 7075-T6 forged aluminum Select Your Finish: Anodized Black Markings: "Cal Multi" Compatibility: Works with standard AR15 components and magazines Other: Rear takedown pin detent hole is threaded for a 4-40 set screw