DIAMONDBACK DB15 MULTI CALIBER STRIPPED LOWER RECEIVER FOR AR-15 The Diamondback DB15 Multi-Caliber Stripped Lower Receiver provides a solid, reliable foundation for AR-15 rifle builds. Precision-machined from forged 7075-T6 aluminum, this lower receiver is finished in a durable matte black hardcoat anodizing for corrosion resistance and long-term durability. Designed with a multi-caliber marking, this stripped lower allows builders flexibility across a wide range of AR-15 caliber configurations. Built to mil-spec dimensions, it accepts standard AR-15 components and is ideal for custom builds, replacements, or OEM assembly. FEATURES AR-15 stripped lower receiver Multi-caliber compatible Forged 7075-T6 aluminum construction Matte black hardcoat anodized finish Precision-machined to mil-spec dimensions Compatible with standard AR-15 fire control and lower parts kits SPECS Caliber Marking: Multi-Caliber Material: Forged 7075-T6 Aluminum Finish: Matte Black Hardcoat Anodized Product Type: Stripped Lower Receiver