Diamondback DB15 Obsidian First Shots

Published on June 29, 2025
Duration: 11:39

This review of the Diamondback DB15 Obsidian, presented by Honest Outlaw, offers an objective look at a 5.56 NATO AR-15 pistol. The reviewer, Chris, highlights its features like an 11.5-inch barrel, M-LOK rail, and ambidextrous controls, while also noting a potential value proposition under $1000 despite a $1216 MSRP. The review includes initial range testing, a notable malfunction, and comparisons to other popular AR-15 platforms.

Quick Summary

The Diamondback DB15 Obsidian is a 5.56 NATO AR-15 pistol featuring an 11.5-inch barrel, M-LOK rail, and ambidextrous controls, often found under $1000. While it offers good features for the price, initial testing revealed a magazine over-insertion malfunction, raising questions about long-term reliability compared to established competitors like the Ruger 556 or S&W Sport III.

Chapters

  1. 00:09Introduction to DB15 Obsidian
  2. 00:51Initial Feature Overview
  3. 01:51Brand Reputation and Pricing
  4. 02:49Range Testing: First Shots
  5. 07:22Post-Shoot Performance Summary
  6. 10:46Market Comparison and Final Thoughts

Frequently Asked Questions

What are the key features of the Diamondback DB15 Obsidian?

The Diamondback DB15 Obsidian features an 11.5-inch barrel, an 11-inch M-LOK rail, forged receivers, an SBA3 brace, and full ambidextrous controls including the safety selector and magazine release. It is chambered in 5.56 NATO.

What was the main malfunction experienced during the review?

During initial range testing, the Diamondback DB15 Obsidian experienced a magazine over-insertion malfunction. This occurred when the magazine was pushed too far into the receiver, causing a round to lodge on top of the bolt carrier, requiring manual clearing.

How does the Diamondback DB15 Obsidian compare to other AR-15 models?

The DB15 Obsidian is compared to the Ruger 556, S&W Sport III, and Springfield Saint. While it offers more premium features like ambidextrous controls for its price, its long-term reliability is questioned due to an early malfunction, making the competitors potentially more proven options.

What is the recommended use for the Diamondback DB15 Obsidian?

With its 11.5-inch barrel, the Diamondback DB15 Obsidian is considered suitable for home defense due to its maneuverability. It is also noted as being effective when suppressed, particularly with suppressors like the Huxwrx Flow 556 Ti.

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