Free shipping over $999 · Every firearm ships to your Delaware FFL dealerWilmington, Newark and New Castle CountyFind your town · All productsShipping & FFL
Home / Shop / Rifles
Diamondback Firearms DB15 M-LOK .223 Remington 5.56 NATO Smoked Bronze Rifle

The Diamondback Firearms DB15 is a versatile American-made modern sporting rifle built around a proven direct gas impingement system. This 16-inch rifle is chambered for both .223 Remington and 5.56 NATO and features a Smoked Bronze finish, an M-LOK handguard, and a six-position adjustable stock. Its flat-top receiver and accessory rail provide a practical foundation for adding an optic, while the threaded barrel supports compatible muzzle devices and suppressor accessories. The rifle includes a manual safety and offers a 30+1 capacity with its included magazine.

Key features

  • Chambered for .223 Remington and 5.56 NATO ammunition
  • 16-inch threaded barrel with a 1/2x28 thread pitch
  • M-LOK handguard supports flexible accessory placement
  • Six-position adjustable stock helps accommodate different users and shooting positions
  • Flat-top receiver is optic ready for a compatible sighting system
  • Direct gas impingement semi-automatic action provides familiar AR-pattern operation

The Diamondback DB15 combines practical features, adaptable fit, and modern accessory compatibility in a dependable rifle platform.

Diamondback Firearms DB15 M-LOK .223 Remington 5.56 NATO: quick facts

What caliber is the Diamondback Firearms DB15 M-LOK .223 Remington 5.56 NATO?
It is chambered in .223 Remington, 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 32.5 inches, weight 6.6 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: Smoked Bronze.
Is it new or used?
New, in the original packaging.
Can I buy it in Delaware?
Yes. It ships to a licensed FFL dealer in Delaware; you pick it up there after the background check. This long gun ships to the licensed Delaware dealer you choose, where you finish Form 4473 and the background check.
Is it in stock?
Yes, at $727.19. Orders leave within 1-2 business days; shipping is free over $999.

Similar rifles in stock

Shop all →