Diamondback Firearms Diamond DB15 .223 5.56 16" - AR-15 Rifle

Built to work and priced to own, the Diamondback Firearms Diamond DB15 .223 5.56 16" brings dependable 5.56 performance to the AR-15 platform without the premium cost of boutique manufacturers or the compromises of budget builds.

The Diamondback Firearms Diamond DB15 .223 5.56 16" brings 5.56 capability to a semi-automatic AR-15 rifle, using a direct impingement operating system designed for dependable function in any condition.

Reliable Function: A proven direct impingement operating system cycles a wide range of 5.56 ammunition reliably — the foundation of any dependable AR-15.

Practical Barrel Length: The 16" barrel strikes a practical balance between velocity, maneuverability, and overall weight — a versatile choice for both defensive and recreational use.

Full Aftermarket Compatibility: Standard AR-15 architecture means the full range of aftermarket components, optics, and accessories are available — configure this rifle exactly how you want it.

Durable Construction: Quality materials and a durable finish ensure this platform holds up under regular range use and long-term storage without degrading function or accuracy.

• Caliber: 5.56
• Barrel Length: 16"
• Gas System: Direct Impingement
• Handguard: Picatinny Quad Rail
• Muzzle Threading: 1/2x28
• Magazine Capacity: 30-Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Works with standard AR-15 lower receivers and accepts STANAG 5.56 magazines. Designed for mil-spec carbine buffer systems and compatible with the full ecosystem of AR-15 parts and accessories.

Machined from 7075 aluminum and coated with Type III Hardcoat Anodized, the receiver set offers durable protection against wear and environmental exposure while maintaining precise fit between components.

Practical for home defense, recreational range use, and entry-level competition. Suits both first-time AR-15 buyers and experienced shooters looking for a dependable utility rifle.

Diamondback Firearms builds a full range of AR-15 rifles with an emphasis on reliability and value, offering solid performance at competitive price points. Made in the USA.