| Brand | Diamondback Firearms |
| SKU | — |
| UPC | — |
| Action | Semi-Automatic |
| Finish | Jungle Green 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 |
| Threaded Barrel | Yes |
| Magazines Included | 1 |
| Ambidextrous Safety | No |
| Condition | New |
Diamondback Firearms Obsidian Series DB15 AR-15 Pattern 5.56 NATO Jungle Green 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 Obsidian Series DB15 is a 5.56 NATO semi-automatic rifle configured for versatile range, training, and field use. It features a 16-inch 4150 CrMoV barrel with a 1:8 right-hand twist, mid-length direct-impingement gas system, and a Diamondback Obsidian muzzle brake mounted on 1/2x28 threads. The flattop forged aluminum upper receiver and 15-inch M-LOK handguard provide a practical foundation for accessories and an aftermarket optic. A Magpul CTR stock, MOE K2 grip, and 30-round PMAG complete the user-focused configuration.
Key features
- 5.56 NATO chambering supports widely available ammunition
- 16-inch nitride-finished 4150 CrMoV barrel with a 1:8 right-hand twist
- Mid-length direct-impingement gas system provides a balanced operating configuration
- Flattop upper receiver is optic ready for a user-selected sighting system
- 15-inch M-LOK handguard includes full Picatinny rail and QD mounting points
- Adjustable Magpul CTR stock accommodates varying shooting positions and gear
The Obsidian Series DB15 combines a practical AR-15 pattern layout with modern accessory mounting and dependable 5.56 NATO performance.
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