Diamondback DB15 5.56 NATO AR-15 Rifle, 16-inch Threaded Barrel, Free-Float M-LOK Handguard, Adjustable Stock, 5 Magazines
This Diamondback DB15 is a 5.56 NATO semi-automatic AR-15 featuring a 16-inch threaded barrel with an A2-pattern flash hider, a forged 7075-T6 flat-top upper, and a free-float aluminum M-LOK handguard. It includes a flip-up front sight and an installed vertical foregrip for practical setup. Made in the USA, it comes with five 30-round magazines and the original Diamondback owner’s manual.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: Signs of wear and handling, with scratches and blemishes. There is carbon buildup in the upper chamber. A piece of Velcro has been applied to the left side of the rail.
What’s Included
- 5x 30rd magazines (Magpul PMAG polymer magazines, some windowed variants, and one translucent polymer STANAG-pattern magazine)
- Diamondback Firearms DB15 owner's manual/documentation
- Flip-up front sight (installed)
- Vertical foregrip (installed)
The DB15 is built on a forged 7075-T6 aluminum receiver set with a flat-top upper, forward assist, and case deflector (forging code "A"). Receiver markings include the DB shield logo, "CAL. MULTI," and "DB15," with the left side marked "DIAMONDBACK FIREARMS, LLC COCOA, FL USA." The ejection-port cover is marked "5.56 NATO."
The 16-inch barrel is threaded and fitted with an A2-pattern flash hider. The rifle uses a direct impingement, semi-automatic action and a carbine receiver extension. A manual safety provides straightforward controls consistent with the AR-15 platform.
An aluminum free-float M-LOK handguard offers slots at 3, 6, and 9 o’clock and a short 1913 rail section that supports the installed flip-up front sight. A vertical foregrip is installed. The stock is a polymer, 6-position adjustable unit, and the pistol grip is a Magpul MOE.
Detachable STANAG-pattern magazines are standard, with a listed capacity of 30+1. This rifle includes five 30-round magazines to support range use or readiness out of the box.