Description
Diamondback Firearms DB15 is a .338 ARC semi-auto AR pistol built around a 10.5 in barrel and a compact configuration. It uses a pistol-length gas system with an adjustable gas block from Superlative Arms for tuning, including suppressor-ready setup. Controls include a Radian Raptor-LT ambi charging handle, a Radian Talon ambi safety, an extended bolt catch, and Radian takedown pins.
Key features
- Chambered in .338 ARC for compatibility with both supersonic and subsonic loads
- Pistol-length gas system with a Superlative Arms adjustable gas block
- Radian Raptor-LT ambi charging handle
- Radian Talon ambidextrous safety
- Extended bolt catch and Radian takedown pins
- Black anodized finish, 9 in free-float M-LOK handguard with anti-rotation rail
- Threaded 5/8×24 barrel for suppressor or muzzle device fitment
Magazine compatibility
The DB15 is described as running reliably on 6.5 Grendel, 400 Legend, and 7.62x39mm magazines without requiring proprietary parts.
| Caliber | .338 ARC |
|---|---|
| Action | Semi-Auto |
| Barrel Length | 10.5 in |
| Thread Pitch | 5/8×24 |
| Rate of Twist | 1-in-5 in |
| Length | 7.5 in |
| Finish | Black (anodized) |
| Safety | Ambidextrous Radian Talon |



