Diamondback Firearms DB15, AR-15 Lower Receiver. Stripped, Anodized Finish, Black Color, Forged Aluminum, Multi-Caliber DB2210R001

The Diamondback Firearms DB15 Stripped AR-15 Lower Receiver (model DB2210R001, UPC 810035754829) is a rock-solid foundation for your next AR build. Made in the USA from forged 7075-T6 aluminum with a matte black anodized finish, this multi-caliber lower gives you the strength, compatibility, and clean aesthetics you want for a truly custom rifle or pistol. Palmetto State Armory+2Classic Firearms+2 Whether you’re assembling a lightweight 5.56 carbine, a .223 Wylde precision rig, or a .300 Blackout home-defense setup, this DB15 stripped lower is built to mil-spec dimensions so it plays perfectly with standard AR-15 parts and uppers. Classic Firearms+2Rifle Supply+2 Key Features – Diamondback DB15 Stripped Lower Receiver (DB2210R001) Platform: AR-15 style, multi-caliber Classic Firearms+2WikiArms+2 Caliber Marking: Multi-Cal – ideal for 5.56 NATO, .223 Rem, .300 Blackout and similar AR-15 calibers Classic Firearms+2Rifle Supply+2 Material: Forged 7075-T6 aluminum receiver for superior strength and durability Palmetto State Armory+2Classic Firearms+2 Finish: Matte black anodized for corrosion resistance and a sleek, tactical look GrabAGun+2Classic Firearms+2 Configuration: Stripped lower – no internal parts, stock, or magazine included Hinterland Outfitters+1 Specs: Built to mil-spec dimensions for broad parts compatibility Guns.com+1 Weight: Approx. 12 oz (0.81 lb) – strong yet lightweight foundation WikiArms+1 MPN: DB2210R001 UPC: 810035754829 Classic Firearms+2Hinterland Outfitters+2 Forged 7075-T6 Aluminum – Built for Hard Use The DB15 stripped lower receiver is forged from 7075-T6 aluminum, the same alloy used in many duty-grade AR platforms and military-spec receivers. Palmetto State Armory+2Classic Firearms+2 Why that matters: Higher strength-to-weight ratio than 6061 billet receivers Better resistance to impact, flex, and long-term fatigue Ideal for rifles that will see heavy training, competition, or defensive use If you’re serious about reliability and longevity, a forged 7075-T6 lower like this Diamondback DB15 is exactly what you want at the heart of your build. Mil-Spec Dimensions & Multi-Caliber Flexibility This lower is built to mil-spec dimensions, which means it’s compatible with most AR-15: Gary's Gun Shop+3Classic Firearms+3Rifle Supply+3 Upper receivers (5.56, .223 Wylde, .300 BLK, etc.) Lower parts kits Triggers and fire control groups Buffer tubes, braces, and stocks The multi-caliber marking gives you the flexibility to configure this lower with a variety of uppers over its lifetime: 5.56 NATO / .223 Rem – classic carbine or patrol rifle builds .300 Blackout – suppressed SBR or pistol builds Other AR-15 calibers compatible with standard lowers That versatility makes the DB2210R001 a great choice if you plan to experiment with different uppers or future-proof your collection. Matte Black Anodized Finish – Durability & Style Diamondback finishes this DB15 lower in a matte black hardcoat anodizing, which is the industry standard for duty-ready AR receivers. GrabAGun+2Classic Firearms+2 Benefits of the anodized finish: Corrosion and wear resistance for harsh environments, range use, and field carry Low-glare, non-reflective surface that blends with most AR uppers and accessories Clean, professional appearance suited for tactical, competition, or recreational builds Whether you’re matching it to a Diamondback upper or a different brand, the finish integrates seamlessly with most black AR components. Stripped Lower – Ideal Starting Point for Custom Builds The DB15 stripped lower ships as a bare receiver (no trigger, safety, mag release, buffer, or stock), giving you a blank canvas to build your dream AR. Hinterland Outfitters+2Guns.com+2 You’ll add your choice of: Lower parts kit (LPK) – choose standard mil-spec or an upgraded kit Trigger – single-stage, two-stage, or match-grade Grip – ergonomic, rubberized, or minimalist Receiver extension/buffer system – carbine, rifle, or pistol tube Stock or brace – anything from lightweight minimalist to precision adjustable Because it’s mil-spec and multi-caliber, you’re free to configure it for defensive, hunting, competition, or range use without being locked into a single layout. Made in the USA – Diamondback DB15 Quality Diamondback Firearms manufactures the DB15 series in the USA, using CNC-machined components and a proven gas-impingement AR design across their complete rifles. Palmetto State Armory+2Diamondback Firearms+2 This stripped lower is part of that same DB15 family, offering: Consistent machining and tolerances Proven reliability when paired with quality parts A trusted name in the AR-15 market It’s an excellent match if you already own a Diamondback DB15 rifle and want to build another, or if you simply want a reputable, USA-made lower for your next project. Ideal Uses – What Builds Is This Lower Perfect For? Thanks to its forged construction, multi-cal marking, and mil-spec geometry, the Diamondback DB15 stripped lower DB2210R001 is a great fit for: General-purpose 5.56/.223 AR-15 rifles – duty, home defense, or range guns Lightweight .300 Blackout builds – dedicated suppressor hosts or compact PDWs Custom competition carbines – where reliability and a strong foundation are essential Budget-friendly yet durable first builds – a quality lower that doesn’t break the bank Whether this is your first AR build or your tenth, starting with a solid forged lower is the smart way to ensure your rifle runs right from day one. Technical Specifications – Diamondback DB15 Lower DB2210R001 Manufacturer: Diamondback Firearms Palmetto State Armory+2Classic Firearms+2 Model: DB15 Stripped Lower Receiver MPN: DB2210R001 UPC: 810035754829 Classic Firearms+2Hinterland Outfitters+2 Platform: AR-15 Type: Stripped lower receiver (no internal parts, no stock, no magazine) Hinterland Outfitters+2Guns.com+2 Material: Forged 7075-T6 aluminum Palmetto State Armory+2Classic Firearms+2 Finish: Matte black hardcoat anodized GrabAGun+2Classic Firearms+2 Caliber Marking: Multi-caliber (.223/5.56/.300 BLK and similar AR-15 calibers) Classic Firearms+2Rifle Supply+2 Specs: Mil-spec dimensions, compatible with standard AR-15 components Guns.com+1 Weight: ~12 oz (0.81 lb) WikiArms+1 Country of Manufacture: USA Palmetto State Armory+2Diamondback Firearms+2 Why Choose the Diamondback DB15 AR-15 Stripped Lower? If you want a strong, reliable, and versatile AR-15 lower that won’t hold back your build, the Diamondback Firearms DB15 Stripped Lower Receiver (DB2210R001) is an excellent choice. You get: True 7075-T6 forged aluminum strength Multi-caliber flexibility for 5.56, .223, .300 BLK, and more Mil-spec compatibility with most AR-15 parts and uppers A durable matte black anodized finish in a clean, no-frills design Quality manufacturing from a respected U.S. maker Use it as the foundation for your next AR—whether that’s a hard-use duty rifle, a sleek competition carbine, or a compact defensive setup—and build with confidence from the lower up. The End