The Ruger Stripped 250th Anniversary Multi Cal AR Lower Receiver gives builders a clean, commemorative foundation for their next AR-15 project. Machined from 7075-T6 forged aluminum to mil-spec dimensions, this serialized lower features a durable black anodized finish and the special “Made In The 250th Year Of American Liberty” engraving on the left side of the receiver. This stripped lower is ideal for shooters who want to start a custom rifle, training gun, or general-purpose range build with proven Ruger quality. The broached magwell, full-cut fire control pocket, and built-in adjustable tension screw make assembly straightforward while helping ensure a solid, rattle-free fit with your chosen upper. Whether you are assembling a multi-caliber setup or a dedicated 5.56 NATO rifle, this lower offers a dependable base backed by Ruger’s reputation for reliable engineering. Key Features: Manufacturer: Ruger Model: America’s 250th Anniversary AR Lower Caliber: Multi Action: Semi-automatic (when fully assembled) Product Type: Stripped Lower Receiver Material: 7075-T6 Forged Aluminum Finish: Black Hardcoat Anodized Special Engraving: “Made In The 250th Year Of American Liberty”