The Diamondback DB15 Obsidian in 5.56mm (MPN DB1784K101) is a semi-automatic AR-15 rifle finished in OD green, pairing a 16-inch barrel with a 1-in-8 twist rate for a wide range of 5.56 bullet weights. Diamondback Firearms equips the DB15 Obsidian with an ambidextrous safety for left- or right-hand shooters, and the rifle feeds from a detachable magazine with a 30+1 capacity. One 30-round PMAG ships with the rifle, and no sights are installed, leaving the flat top ready for an optic. Among AR-platform rifles in the AR rifles category, the DB15 Obsidian favors shooters who want an OD green-finished, ambidextrous-ready AR-15.

Key Specifications

• Chambered in .223 Rem/5.56 NATO with a 1-in-8 rate of twist.
• Features a 16-inch barrel.
• Finished in OD green.
• Includes an ambidextrous safety for left- or right-hand use.
• Feeds from a detachable magazine with a 30+1 capacity.
• Ships with one 30-round PMAG.
• Overall length is 34 inches.
• Ships with no sights installed, ready for an optic.
• Ships at approximately 8.35 pounds.

Frequently Asked Questions

Is the safety ambidextrous? Yes, it can be operated from either side for left- or right-hand shooters.

What finish does this rifle use? OD green.

Does this rifle come with sights? No, it ships without sights, ready for an optic to be mounted.

Buy the Diamondback DB15 Obsidian 5.56mm

An OD green-finished, ambidextrous-ready AR-15 is exactly what the DB15 Obsidian delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.