| Brand | Diamondback Firearms |
| SKU | — |
| UPC | — |
| Action | Semi-Automatic |
| Finish | Brown Cerakote |
| Weight | 6.6 pounds |
| Capacity | 30+1 |
| Grip Safety | No |
| Optic Ready | Yes |
| Barrel Length | 16 inches |
| Manual Safety | Yes |
| Overall Length | 36.25 inches |
| Trigger Safety | No |
| Caliber / Gauge | 5.56 NATO, .223 Remington |
| Threaded Barrel | Yes |
| Magazines Included | 1 |
| Ambidextrous Safety | No |
| Condition | New |
Diamondback Firearms DB15 Obsidian Series 5.56 NATO Brown Cerakote Rifle
Firearms ship to the FFL dealer you name at checkout. Price and stock are re-checked live when you order.
The Diamondback Firearms DB15 Obsidian Series is a 5.56 NATO semi-automatic rifle built around forged 7075-T6 aluminum receivers and a mid-length direct-impingement gas system. Its 16-inch 4150 CrMoV barrel uses a 1:8 right-hand twist and combines black nitride protection with FDE Cerakote. A 15-inch M-LOK handguard provides flexible accessory mounting, while the flattop upper receiver supports a wide range of optics. The rifle includes a Magpul CTR collapsible stock, Magpul MOE K2 grip, DB Obsidian muzzle brake, and one 30-round PMAG.
Key features
- 16-inch 4150 CrMoV barrel with a 1:8 right-hand twist for versatile 5.56 NATO performance
- Mid-length direct-impingement gas system for balanced handling and cycling characteristics
- 15-inch M-LOK handguard with full Picatinny rail and integrated QD mounting points
- Flattop upper receiver provides an optic-ready mounting platform
- Magpul CTR collapsible stock and MOE K2 grip improve fit and control
- Includes one Magpul Gen M3 PMAG with 30-round capacity
The DB15 Obsidian Series combines a practical carbine layout with durable Cerakote finishes and adaptable mounting space for range, training, and general-purpose use.
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