Diamondback DB15 Handgun .338 ARC 26rd Magazine 10.5″ 5/8×24 Threaded Barrel Black with 9″ V3 M-LOK Anti-Rotation Rail
$1,133.63
The Diamondback DB15 Handgun is a compact AR pistol chambered in .338 ARC, designed for exceptional accuracy and versatility with both supersonic and subsonic loads. It features a 10.5″ threaded barrel and an adjustable gas system, making it an excellent choice for shooters seeking power and performance in a portable platform.
18 in stock
The Diamondback .338 ARC AR Pistol delivers advanced ballistics and real-world performance in a compact American-made platform. Chambered in .338 ARC this pistol offers accuracy power and versatility that shooters demand.
Key Features
- Chambered in .338 ARC: Built for accuracy range and stopping power with both supersonic and subsonic loads.
- Adjustable Gas System: Pistol-length gas with Superlative Arms adjustable gas block for fine-tuned performance suppressor-ready from day one.
- Premium Controls Standard: Outfitted with Radian Raptor-LT ambi charging handle Radian Talon ambi safety extended bolt catch and Radian takedown pins.
- Unmatched Magazine Compatibility: Runs reliably on 6.5 Grendel 400 Legend and 7.62x39mm magazines without requiring proprietary parts.
- Ready Out of the Box: Includes Magpul MOE grip SB Tactical SBA5 brace and a 26-round metal magazine.
| Weight | 7.400 lbs |
|---|---|
| Dimensions | 31.750 × 9.000 × 4.000 in |
| Manufacturer | Diamondback |
| Caliber | .338 ARC |
| Barrel Length | 10.5 |
| Capacity | 26+1 |
| Action | Semi-automatic |
| Finish | Black |
| Frame Material | Aluminum |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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