Description
Engineered for precision and reliability, the Diamondback DB15 in 300 AAC Blackout delivers consistent performance with its robust construction and thoughtful design elements.
This rifle incorporates a pistol-length gas system that optimizes cycling with the 300 Blackout cartridge. The free-float M-LOK handguard provides ample real estate for mounting lights, grips, and other accessories while maintaining a slim profile.
Key Specifications:
- Manufacturer: Diamondback
- Model: DB15
- Caliber: 300 AAC Blackout
- Barrel Length: 16 inches
- Barrel Twist: 1:8″ RH
- Gas System: Pistol-length
- Handguard: 12″ M-LOK rail
- Upper Receiver: A3 flattop forged 7075 T-6 aluminum
- Lower Receiver: Forged 7075 T-6 aluminum
- Bolt Carrier Group: Shot-peened magnetic particle inspected mil-spec 8620
- Muzzle Device: A2 .30 caliber flash hider (5/8 x 24)
- Stock: Magpul MOE carbine
- Grip: Magpul MOE
- Magazine: 300 Blackout Gen 3 PMAG 30-round
- Weight: 6.62 pounds
- Length (collapsed): 32 1/4 inches
- Length (extended): 35 1/2 inches
The melonite-coated 4140 chrome-moly barrel enhances durability and corrosion resistance, while the forged aluminum receivers provide a solid foundation for the platform. California firearm enthusiasts in Sacramento will appreciate how this rifle’s design accommodates compliance modifications while maintaining core functionality.
Diamondback manufactures all components in the United States using CNC machining processes that ensure tight tolerances and consistent quality. The carbine-length buffer system works in harmony with the pistol-length gas system to provide reliable operation across various ammunition types.
This rifle ships with one 30-round magazine, cable lock, and owner’s manual. California customers must arrange transfer through a licensed FFL dealer following all state and local regulations.
Maria W. (verified owner) –
After putting about 500 rounds through it, I can say this rifle runs reliably. The finish held up well during my outdoor range trips near Stockton. My only nitpick is the price felt a bit high compared to similar options, but having it California-ready from Cal Guns Depot saved me the compliance headache.
Kevin M. (verified owner) –
Living in Modesto, I needed a compliant rifle for hunting, and this Diamondback delivered. The 300 Blackout chambering is perfect for the terrain around here. During my first field use, I appreciated how the rifle handled – not too heavy, and the M-LOK rail let me configure it exactly how I wanted for carrying through brush.
Jessica T. –
Took this to the range last weekend and was impressed with the accuracy at 100 yards with 220-grain subs. The trigger was a bit heavier than I prefer though – I’ll probably swap it out eventually. Still, it cycled everything I fed it without a single malfunction.
Daniel S. –
Field tested this during a weekend trip to the range and was hitting steel consistently at 150 yards. The 300 Blackout round performed exactly as advertised, especially with suppressed shooting. The rifle balanced well in my hands, and the M-LOK slots gave me plenty of mounting options for my preferred setup.
Miguel A. (verified owner) –
I was looking for a 300 Blackout rifle that met all California regulations, and this one from Cal Guns Depot checked every box. The M-LOK rail felt solid when I mounted my light and grip, and the overall build quality exceeded my expectations for the price.
Robert C. (verified owner) –
What stood out immediately was how easy the M-LOK rail made attaching accessories. I added a vertical grip and bipod in minutes. The 300 Blackout chambering performed beautifully with both supers and subs during my range session. Recoil was surprisingly manageable for the caliber.