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Diamondback Firearms DB15 5.56 NATO Rifle, AR-15 Style, M-LOK Handguard, Magpul MOE Furniture

The Diamondback Firearms DB15 is a versatile 5.56 NATO semi-automatic rifle built around lightweight 7075-T6 aluminum receivers. Its 16-inch medium-profile 4150 Chrome Moly steel barrel uses a carbine-length direct-impingement gas system and a pinned gas block for dependable operation. A 15-inch M-LOK anti-rotation handguard provides flexible accessory mounting, while the Magpul MOE grip and six-position carbine stock support a comfortable, adaptable shooting position. The rifle includes a threaded muzzle with an A2 flash hider and a 1:8 twist rate suited to a broad range of bullet weights.

Key features

  • 5.56 NATO chambering with 30+1 capacity for training, sport shooting, and general-purpose use
  • 16-inch medium-profile 4150 Chrome Moly barrel with durable black Melonite finish
  • Carbine-length direct-impingement gas system with pinned gas block
  • 15-inch M-LOK anti-rotation handguard supports a wide range of accessories
  • 7075-T6 aluminum receivers help reduce weight while maintaining strength
  • Magpul MOE grip and six-position carbine stock provide ergonomic adjustability

The Diamondback Firearms DB15 combines a practical carbine configuration with modern modular features for a capable, adaptable rifle platform.

Diamondback Firearms DB15 5.56 NATO Rifle, AR-15 Style,: quick facts

What caliber is the Diamondback Firearms DB15 5.56 NATO Rifle, AR-15 Style,?
It is chambered in 5.56 NATO.
How many rounds does it hold?
30+1 rounds.
How big and heavy is it?
Barrel length 16 inches, overall length 32.5 inches, weight 6.65 pounds.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: Yes; threaded barrel: Yes.
What sights and finish does it have?
Sights: Standard Sights; finish: Blue/Black.
Is it new or used?
New, in the original packaging.
Can I buy it in Missouri?
Yes. It ships to a licensed FFL dealer in Missouri; you pick it up there after the background check. Missouri buyers pick this up at a licensed dealer after a NICS check, with no permit to purchase and no waiting period; dealers sell rifles and shotguns from age 18.
Is it in stock?
Yes, at $574.99. Orders leave within 1-2 business days; shipping is free over $999.

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