Product DescriptionThe SHIELD ARMS SA-15 stripped lower receiver is a solid foundation for a custom AR-15 build. Machined from 7075-T6 aircraft-grade billet aluminum, this non-folding lower is built for strength, durability, and dependable fitment with mil-spec AR-15 components. Its matte black hard-coat anodized finish helps resist wear and corrosion, while the precision-machined magazine well with beveled feed lip supports smoother reloads. Designed as a stripped lower, it gives builders the flexibility to choose their own lower parts kit, trigger, stock assembly, and other components to match their preferred setup.This receiver is multi-caliber marked and intended for AR-15 platform builds using standard AR-15 magazines. Additional builder-friendly details include compatibility with 45-degree and 60-degree short-throw fire control selectors, along with threaded provisions that help simplify assembly and fine-tune upper-to-lower fit. For shooters and builders who want a clean, high-quality lower receiver without unnecessary extras, the SA-15 delivers rugged construction and precise machining in a straightforward package.Product Highlights Machined from 7075-T6 aircraft-grade billet aluminum for strength and long-term durability Matte black hard-coat anodized finish helps protect against wear and corrosion Precision-machined magazine well with beveled feed lip promotes smoother magazine changes Multi-caliber marked, mil-spec compatible design for AR-15 builds using standard AR-15 magazines Compatible with 45-degree and 60-degree short-throw fire control selectors for added build flexibility Specs Brand: SHIELD ARMS Model: SA-15 Manufacturer Part Number: SAO15 Product Type: Stripped Lower Receiver Platform: AR-15 Configuration: Non-Folding Material: 7075-T6 Aircraft Grade Billet Aluminum Finish: Black Anodized, Matte Black Hard-Coat Anodize (Mil-Spec Type III Class 2) Caliber Marking: Multi Caliber Compatibility: .223 Rem / 5.56 NATO AR-15 builds Magazine Compatibility: Standard AR-15 Magazines Upper Receiver Compatibility: Mil-Spec AR-15 Receiver Dimensions: Mil-Spec Fire Control Selector Compatibility: 45-degree and 60-degree short-throw selectors Weight: Approximately 8 oz UPC: 853465008049 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.