Diamondback DB15 Combo 5.56 NATO & 300 Blackout 16"
- .300 Blackout 10" Barrel $641.18
- .300 Blackout 10" Pistol $705.88
- .300 Blackout 10" Pistol OD Green $744.71
- .300 Blackout 10.5" OD Green $1,034.12
- .338 ARC, 10.5" Pistol $1,214.12
- 10" Barrel Midnight Bronze $684.71
- 10" Pistol FDE $684.71
- 16" Barrel, 5.56 NATO $752.26
- 16" Barrel, CA Compliant $870.59
- 16" FDE $711.76
- 16" Green/Gold Cerakote $836.56
- 16" Midnight Bronze $876.47
Diamondback DB15 dual-caliber rifle system with two complete uppers: 5.56 NATO and 300 Blackout. 16" barrels, 12" M-LOK handguard, Magpul furniture, Flat Dark Earth finish. American-made.
Diamondback DB15 Combo Rifle System
The Diamondback DB15 represents a practical approach to modern rifle ownership. This combo package provides two complete upper receiver assemblies, allowing you to switch between 5.56 NATO and 300 Blackout calibers on a single lower receiver.
Key Features
Dual-Caliber Versatility
- Two complete upper assemblies included
- 5.56 NATO upper for standard rifle applications
- 300 Blackout upper for specialized hunting and suppressed shooting
- Quick-change design for field conversion
Quality Construction
- CNC-machined components throughout
- 4140 chrome moly barrels for durability and accuracy
- Gas-impingement operating system
- Carbine-length gas system for reliable function
Ergonomic Design
- 12" M-LOK handguard for accessory mounting flexibility
- Magpul MOE carbine stock for adjustable length of pull
- Magpul MOE pistol grip for comfortable control
- A3 flattop upper receiver with integrated Picatinny rail
- A2 flash hider for muzzle control
American Manufacturing
- Built in the USA with quality control standards
- Flat Dark Earth finish for a professional appearance
This system offers shooters the flexibility to train and hunt across multiple calibers without purchasing separate rifles. The combination of proven Diamondback quality and practical versatility makes this an excellent choice for serious shooters.
