# Diamondback DB15 Obsidian 5.56 NATO 11.5in OD Green

**Brand:** Diamondback Firearms
**Category:** Handguns
**Caliber:** 5.56 NATO

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 11.5"
- **Finish:** OD Green Cerakote
- **UPC:** 810035756250
- **SKU:** UCEGBnTuk

## Description

The Diamondback DB15 Obsidian is a 5.56 NATO AR-style pistol built around an 11.5-inch barrel and finished in OD Green Cerakote. It pairs a forged 7075-T6 aluminum upper and lower with an SB Tactical SBA5 adjustable brace, giving it a compact, maneuverable footprint. The package ships with a 30-round Magpul PMAG and an M-LOK handguard for mounting accessories.

### Key Specifications
- **Brand:** Diamondback Firearms
- **Model:** DB15 Obsidian (DB1984K101)
- **Caliber:** 5.56 NATO
- **Action:** Semi Auto
- **Capacity:** 30+1
- **Barrel Length:** 11.5"
- **Finish:** OD Green Cerakote
- **Material:** 7075-T6 Aluminum receiver set

### Detailed Features
- 11.5-inch 4150 chrome moly vanadium barrel with a black nitride finish and 1:8 RH twist
- 1/2x28 threaded muzzle fitted with a Diamondback Obsidian muzzle brake
- 11-inch M-LOK free-float handguard with QD sling mounting points
- A3 flattop forged upper receiver with a full-length Picatinny rail for optics
- SB Tactical SBA5 brace with adjustable length of pull, plus a Magpul MOE K2 grip

## Frequently Asked Questions

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

A: The DB15 Obsidian is chambered in 5.56 NATO.

**Q: Who makes the DB15 Obsidian?**

A: Diamondback Firearms makes the DB15 Obsidian.

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

A: It has an 11.5-inch barrel, chrome moly vanadium with a black nitride finish.

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

A: It ships with a 30-round Magpul PMAG, giving it 30+1 capacity.

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

A: It is a semi-auto AR-style pistol built on a forged 7075-T6 aluminum upper and lower, with an SB Tactical SBA5 adjustable brace instead of a stock.

**Q: Is the DB15 Obsidian threaded?**

A: Yes, it has a 1/2x28 threaded muzzle fitted with a Diamondback Obsidian muzzle brake.

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

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the DB15 Obsidian generally describe the build as solid for the price point, with the 7075-T6 receiver set and nitride-finished barrel holding up well under regular range use. Some note that fit and finish on Diamondback's Cerakote work is consistent, though a few mention wanting to swap the factory trigger for an aftermarket unit early on.

As a braced AR pistol, the DB15 Obsidian draws praise for how compact and easy to maneuver it is compared to a full-size carbine, especially with the SBA5 brace collapsed. The M-LOK handguard leaves enough real estate for a light or foregrip without adding much bulk.

On value, buyers tend to see the Obsidian series as priced fairly against other OD Green AR pistols, and the M-LOK and Picatinny layout means most standard AR-15 parts and optics drop right on without issue.

## Pricing

**7 offers available**

| Vendor | Price |
|--------|-------|
| Gritrsports Com | $978.99 |
| Shootingsurplus Com | $980.09 |
| Kygunco Com | $993.27 |
| Buds Gun Shop | $1010.99 |
| Classicfirearms Com | $1014.00 |
| Deguns | $1037.99 |
| Guns Com | $1081.99 |

## Similar Products

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