Ships to FFL
The Diamondback Firearms DB15 Combo is a semi-automatic AR-pattern rifle package designed around interchangeable 5.56 NATO and .300 Blackout configurations. Both barrels measure 16 inches, while the black hard-coat anodized receiver set and adjustable Magpul MOE stock provide a durable, familiar platform for range use, training, and recreational shooting. A flat-top receiver with an optic mounting rail supports the addition of a compatible red dot sight or riflescope.
Key features
- Interchangeable 5.56 NATO and .300 Blackout configurations provide versatile ammunition options
- Two 16-inch barrels support balanced handling and practical range performance
- Semi-automatic operation with 30+1 capacity supports efficient target practice
- Black hard-coat anodized receiver finish helps resist wear from regular use
- Adjustable Magpul MOE stock allows the length of pull to be tailored to the shooter
- Flat-top optic mounting rail makes the rifle ready for a compatible sighting optic
The DB15 Combo delivers a flexible AR-pattern rifle platform with two popular chamberings in one package.
Diamondback Firearms DB15 Combo 5.56 NATO .300 Blackout: quick facts
- What caliber is the Diamondback Firearms DB15 Combo 5.56 NATO .300 Blackout?
- It is chambered in 5.56 NATO, .300 Blackout.
- How many rounds does it hold?
- 30+1 rounds.
- How big and heavy is it?
- Barrel length 16 inches.
- 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: Black Hard Coat Anodized.
- Is it new or used?
- New, in the original packaging.
- Can I buy it in New Jersey?
- Yes. It ships to a licensed FFL dealer in New Jersey; you pick it up there after the background check. New Jersey buyers need an FPIC and must confirm with their NJ dealer that this rifle or shotgun is NJ-legal, since the state's assault firearm law and 10-round magazine limit remain in effect.
- Is it in stock?
- Yes, at $1074.09. Orders leave within 1-2 business days; shipping is free over $999.
Similar rifles in stock
Shop all →Ships to FFL
Ships to FFL
Ships to FFL
Ships to FFL
Ships to FFL
Ships to FFL
Ships to FFL
Fierce Firearms
$2196.39
Caliber: 6.5 PRC | Barrel: 20 in | Capacity: -