Luth-AR UR-01-E3-SA A1 Upper Receiver 223/5.56 NATO Aluminum Black Hardcoat Anodized - Assembled

The Luth-AR UR-01-E3-SA is an assembled A1-style upper receiver chambered for .223 Rem / 5.56 NATO and intended for use with a standard AR-15 lower. The receiver is machined from 7075-T6 aluminum forgings and finished in a tough Black Hardcoat Anodize for the corrosion resistance and surface hardness expected from a quality anodized aluminum part.

The slick-side A1 configuration follows the correct early-style carry handle contours for an authentic retro look, with no flat-top Picatinny rail on top, making it a natural choice for retro builds, clone-correct rifles, or replacement projects on existing AR-15 platforms.

Sold as an assembled upper, the UR-01-E3-SA is ready to install on a compatible lower. At a compact 7.75" overall length, the A1 receiver keeps build weight in check while providing a strong foundation for your retro AR-15 build.