# Diamondback DB15 Compact .300 Blackout Pistol - 30-Round Capacity

**Brand:** Diamondback Firearms
**Category:** Semi-Automatic Rifles
**Caliber:** .300 AAC Blackout

## Specifications

- **Caliber:** .300 AAC Blackout
- **Barrel Length:** 7"
- **Capacity:** 30 rounds
- **Finish:** Black Nitride
- **UPC:** 810035755062
- **SKU:** UCEGBnTba

## Description

The Diamondback DB15 is an AR-pistol chambered in .300 AAC Blackout with a 7-inch barrel and 30-round capacity. It runs on an AR-15 platform with a 7075-T6 aluminum upper and lower, black hard coat anodized finish, and an A2 flash hider at the muzzle. The flat-top upper is optic-ready.

### Key Specifications
- **Action:** Semi-Automatic
- **Caliber:** .300 AAC Blackout
- **Barrel Length:** 7 inches
- **Capacity:** 30 rounds
- **Finish:** Black Hard Coat Anodized

### Features
The 7-inch barrel makes this a short, maneuverable package, and .300 Blackout was specifically designed to perform from short barrels, particularly with subsonic loads paired with a suppressor. The optic-ready flat-top rail accepts any standard AR-pattern optic mount. The A2 flash hider reduces muzzle flash at the short barrel. The DB15 accepts standard AR-15 magazines and uses AR-15 compatible parts throughout.

### Who It's For
Shooters who want a compact .300 Blackout pistol for home use, suppressed shooting, or range work. The 7-inch barrel with .300 BLK is a natural suppressor host. Standard AR-15 compatibility keeps the cost of accessories and repairs predictable.

## Frequently Asked Questions

**Q: What caliber is the DB15?**

A: The DB15 is chambered in .300 AAC Blackout.

**Q: Who makes the DB15?**

A: The DB15 is made by Diamondback.

**Q: What type of firearm is the DB15?**

A: It is a semi-automatic AR-pistol built on an AR-15 platform.

**Q: What is the barrel length of the DB15?**

A: The DB15 has a 7-inch barrel.

**Q: How many rounds does the DB15 hold?**

A: It has a 30-round capacity.

**Q: Is the DB15 optic-ready?**

A: Yes, the flat-top upper is optic-ready and accepts standard AR-pattern optic mounts.

**Q: Where can I buy the DB15?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The Diamondback DB15 in .300 Blackout draws favorable feedback for its compact AR-pistol package at a competitive price. The 7-inch barrel and .300 BLK combination gets consistent praise from owners who run suppressors, since the caliber was designed around short barrels and subsonic loads.

The 30-round capacity and standard AR-15 compatibility are frequently mentioned positives. Customization is straightforward because the DB15 accepts standard AR-15 parts and accessories.

Reliability is the main split in owner feedback. Most report no issues, but a subset has experienced feeding problems or malfunctions. The general recommendation from experienced owners is to be selective about ammunition. Cheap bulk ammo is more likely to cause issues than quality brass-cased loads. Build quality opinions vary; some find it solid for the price, others feel the fit and finish trail premium AR builders.

Overall, the DB15 is considered good value in the .300 BLK AR-pistol category, with reliability being the one area where individual experiences diverge.

## Pricing

**6 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $795.99 |
| Shootingsurplus Com | $886.43 |
| Kygunco Com | $898.35 |
| Buds Gun Shop | $898.49 |
| Grabagun Com | $899.99 |
| Impactguns Com | $903.39 |

## Reviews

**Average Rating:** 5.0/5 (1 reviews)

> **dana_62** (5/5): The ten-inch upper was exactly right for my subsonic build.

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*Data from [GunsNation](https://gunsnation.com)*