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Diamondback Firearms DB15 Flat Top 5.56 NATO FDE/Tan Rifle

The Diamondback DB15 Flat Top is a 5.56 NATO semi-automatic rifle in FDE/Tan with a 16-inch threaded barrel and 1/2x28 muzzle threads. It holds 30+1 and comes with one magazine. The flat-top receiver is optic ready, and the adjustable Magpul ACS-L stock and MOE-K2+ grip give a customizable fit. The rifle weighs 6.65 pounds and measures 37.25 inches overall, with a single-stage trigger and a manual safety. The chambering also accepts .223 Remington ammunition.

In Nevada this rifle goes through a licensed dealer after a background check, with no permit and no state waiting period. Dealers sell rifles from age 18. The flat-top layout suits a shooter who plans to mount a scope or red dot for range work, training and practical rifle use, and the adjustable stock keeps the length of pull matched to the shooter.

Key features

  • 5.56 NATO, also accepts .223 Remington
  • 16-inch threaded barrel, 1/2x28 threads
  • Optic-ready flat-top receiver
  • Adjustable Magpul ACS-L stock
  • Single-stage trigger, 30+1 capacity

Firearms ship to a Nevada FFL dealer, where you complete Form 4473 and pass a background check.

Diamondback Firearms DB15 Flat Top 5.56 NATO FDE/Tan Rifle: quick facts

What caliber is the Diamondback Firearms DB15 Flat Top 5.56 NATO FDE/Tan Rifle?
It is chambered in 5.56 NATO.
How many rounds does it hold?
30+1 rounds; magazines included: 1.
How big and heavy is it?
Barrel length 16 inches, overall length 37.25 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?
finish: FDE/Tan.
Is it new or used?
New, in the original packaging.
Can I buy it in Nevada?
Yes. It ships to a licensed FFL dealer in Nevada; you pick it up there after the background check. Nevada buyers pick this up at a licensed dealer after a background check, with no permit and no state waiting period; dealers sell rifles and shotguns from age 18.
Is it in stock?
Yes, at $1378.79. Orders leave within 1-2 business days; shipping is free over $999.

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