# Diamondback Carbon DB15 - 300 AAC Blackout, FDE, Threaded Barrel

**Brand:** Diamondback Firearms
**Category:** Compact Handguns
**Caliber:** .300 AAC Blackout

## Specifications

- **Caliber:** .300 AAC Blackout
- **Barrel Length:** 10"
- **Capacity:** 30 rounds
- **Finish:** FDE Cerakote
- **Weight:** 91.2 oz
- **UPC:** 810035754409
- **SKU:** UCEGBnTR3

## Description

The Diamondback Carbon DB15 Pistol is a semi-automatic AR-pistol chambered in .300 AAC Blackout with a 10" barrel, FDE Cerakote finish, and 5/8x24 threaded muzzle. It runs both supersonic and subsonic .300 BLK loads and is sized for .30-cal suppressors out of the box.

### Key Specifications
- **Manufacturer:** Diamondback Firearms
- **Family:** Carbon Series
- **Model:** Carbon DB15 Pistol
- **Type:** Semi-Auto Pistol
- **Action:** Semi-Auto
- **Caliber/Gauge:** 300 AAC Blackout
- **Finish:** FDE Cerakote 
- **Barrel Length:** 10"
- **Rate of Twist:** 1-in-8
- **Capacity:** 30 + 1 
- **Number of Magazines:** 1 
- **Magazine Description:** 30rd. PMAG 
- **Sights Type:** None 
- **Thread Pattern:** 5/8x24 
- **Special Feature:** Threaded Barrel 
- **Weight:** 5.7 lbs. 
- **Safety Features:** 2-position thumb safety 
- **Receiver Material:** Forged 7075 T6 Aluminum 
- **Additional Info:**
    - 9" PC M-Lok Rail  
    - SBA3 Brace  
    - Magpul MOE Grip  

### Detailed Features
The 10" barrel with a 1-in-8 twist handles the typical .300 BLK bullet-weight range. At 5.7 lbs., it's on the lighter end for a .300 BLK AR-pistol. The forged 7075 T6 receiver holds up to normal use, and the 9" M-Lok rail gives you room for a light, foregrip, or other accessories.

The 5/8x24 threaded muzzle is the right size for .30-cal suppressors, a key practical advantage for anyone running subsonic .300 BLK quietly. FDE Cerakote is an applied finish rather than just a coating, so it handles moisture and abrasion reasonably well.

A Magpul MOE Grip and adjustable SBA3 Brace come standard. One 30-round PMAG is included.

### Usage Scenarios
- **Home Defense:** Compact, 30+1 rounds, and subsonic .300 BLK loads offer reduced over-penetration vs. 5.56
- **Competitive Shooting:** Light weight and fast follow-up capability
- **Hunting / Suppressed Use:** Subsonic .300 BLK suppressed through a .30-cal can is a low-noise option for close-range hunting or pest control

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> I think this is probably one of my favorite guns that I own it's the db15 by Diamondback and this thing is just a beast.
>
> — [Johnny Q](https://www.youtube.com/watch?v=5-f6l9Wlhe0&t=2s)

## What Customers Say

*AI-generated insights from customer reviews*

The Diamondback Carbon DB15 in .300 AAC Blackout with FDE Cerakote gets positive attention for its light weight and the practical flexibility of the .300 BLK chambering. Owners who want to run both supersonic and subsonic loads, particularly suppressed, find the 5/8x24 threaded barrel and .300 BLK caliber combination appealing. The FDE finish gets consistently good marks for looks and real-world durability.

Reliability feedback is mixed. Most owners report acceptable cycling with standard loads, but feeding issues with certain ammo types or brands come up with some regularity. .300 BLK ammo selection matters more on some AR-platform pistols than others, and this one isn't immune to that.

Price comparisons to other AR-pistol options appear frequently. Some owners feel the value proposition is solid; others believe there are better-built alternatives at similar price points. The overall impression is positive but conditional. It works well for many owners, but ammo compatibility testing before relying on it is a reasonable precaution.

## Pricing

**12 offers available**

| Vendor | Price |
|--------|-------|
| Impactguns Com | $699.99 |
| Shootingsurplus Com | $705.80 |
| Kygunco Com | $715.29 |
| Centerfiresystems Com | $715.99 |
| Globalordnance Com | $727.95 |
| Buds Gun Shop | $735.99 |
| Grabagun Com | $746.00 |
| Deguns | $746.99 |
| Selwayarmory Com | $746.99 |
| Classicfirearms Com | $773.00 |

*...and 2 more offers*

## Similar Products

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- [Diamondback DB15 Carbon Pistol - 300 Blackout ODG Cerakote](https://gunsnation.com/p/diamondback-db15-carbon-pistol-300-blackout-odg-cerakote/UCEGBnTRA)
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- [Diamondback DB15 .300 AAC Blackout 10in FDE](https://gunsnation.com/p/diamondback-db15-300-aac-blackout-10in-fde/UCEGBnU20)
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*Data from [GunsNation](https://gunsnation.com)*