Description
Engineered for precision and durability, the Diamondback DB15 represents a solid foundation for California shooters seeking a dependable semi-automatic rifle platform. Built entirely in the USA with CNC-machined components, this firearm combines robust construction with practical features that appeal to both new and experienced firearms owners throughout the state.
The DB15 utilizes a direct gas impingement system for reliable cycling and incorporates high-quality materials throughout its construction. The 4140 chrome moly barrel provides excellent service life, while the 7075 T6 aluminum receivers offer strength without excessive weight. For Sacramento-area enthusiasts, this rifle’s configuration balances performance with California compliance requirements.
- Manufacturer: Diamondback Firearms
- Model: DB-15
- Caliber: 5.56mm
- Barrel Length: 16″
- Stock: 6-Position
- Receiver Finish: Black Hard Coat Anodized
- Receiver Material: 7075 T6 Aluminum
- Muzzle Device: A2 Flash Hider
- Handguard: 12″ M-LOK
- Grip: Black A2
- Sights: None; Optics Ready
- Thread Pattern: 1/2″-28 TPI
- Magazine Capacity: 30 Rounds
This rifle ships with a 30-round magazine, cable lock, and owner’s manual. The 12-inch M-LOK handguard offers extensive mounting options for accessories, while the A2 flash hider provides effective muzzle control. The carbine-length gas system ensures smooth operation, and the flat-top upper receiver accommodates various optics configurations without modification.
California customers should note that all firearms ship to your local FFL dealer for transfer, with compliance modifications available for Los Angeles, San Diego, and Sacramento residents as required by state regulations.





Robert K. (verified owner) –
I’ve put about 500 rounds through this Diamondback at the Bakersfield range over the past month. The 5.56mm groups were tight at 100 yards, and the rifle cycled everything from cheap brass to premium loads without a single malfunction. The California-compliant features worked as advertised.
Jessica T. –
The rifle handled well during my first range session, and the build quality felt sturdy. My only nitpick is the trigger pull felt a bit heavy compared to some other AR-15s I’ve tried. Still, it’s a reliable option for California shooters.
Miguel S. (verified owner) –
Took this to the range in Sacramento last weekend and was impressed with the accuracy right out of the box. The M-LOK handguard made it easy to mount my accessories, and the 5.56mm performed flawlessly with the ammo I had on hand.
Maria L. (verified owner) –
After comparing several options, I went with this DB15 and haven’t regretted it. The M-LOK system let me customize the handguard exactly how I wanted, and the rifle balanced nicely during my first outing. For the price, it’s hard to beat what you get in California’s restrictive market.