Diamondback Firearms DB15 5.56 NATO Semi-Auto Rifle, 16″ Barrel, DB1731K071
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Home » Shop » Diamondback Firearms DB15 5.56 NATO Semi-Auto Rifle, 16″ Barrel, DB1731K071
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$969.00Original price was: $969.00.$896.00Current price is: $896.00.
🚚 Ships to your local FFL — order online, put your FFL dealer’s name and address in the Order notes box at checkout, and we coordinate the rest. Most firearms ship same or next business day. How buying a gun online works.
Diamondback Firearms DB15 is a semi-auto AR-style rifle chambered in 5.56 NATO with a 16" 4150 chrome moly barrel and a 30+1 round capacity. It suits shooters who want a Cerakote-finished carbine to build out with their own optic and accessories.
Chambered in 5.56 NATO, semi-auto
16" 4150 chrome moly barrel, 1:8" twist
30+1 round capacity
Magpul CTR stock with MOE K2 grip
Midnight Bronze Cerakote finish
Overall length of 32.75"
SKU: DAV-DB1731K071 · Mfr part #: DB1731K071 · UPC: 810035754119
The Diamondback Firearms DB15 is a semi-auto AR-style rifle chambered in 5.56 NATO, built around a 16″ barrel. The barrel is 4150 chrome moly with a 1:8″ twist, and it is threaded for a muzzle device. Diamondback fits its own CNC muzzle device from the factory.
This rifle runs on a direct impingement system with a mid-length gas system. It has a manual safety, a forward assist and a dust cover. The trigger is standard. Capacity is 30+1 rounds, and it uses polymer AR-style magazines.
What sets this DB15 apart
The finish is Midnight Bronze Cerakote. The stock is a Magpul CTR, paired with a Magpul MOE K2 grip. The handguard uses an M-LOK rail. The upper has an integral Picatinny optic mount at 0 MOA. This rifle has no sights, so you will need to add an optic or a set of backup sights of your own.
The DB15 fits a shooter who wants a straightforward 16″ carbine for range days, training or a home build-out. A red dot or low-power variable optic mounts right on the upper. M-LOK accessories such as a sling mount, light or vertical grip attach to the handguard. Extra 30-round polymer magazines, a padded rifle case and a good sling round out the setup. Because the barrel is threaded, you can swap in a different muzzle device if you like.
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
Frequently Asked Questions
Q: Does the Diamondback DB15 come with sights?
A: No. This model has no sights. It has an integral Picatinny optic mount at 0 MOA, so you can mount a red dot or scope.
Q: What twist rate does this DB15 have?
A: 1:8". The 16" barrel is 4150 chrome moly.
Q: Is the DB15 barrel threaded?
A: Yes. The barrel is threaded, and it carries a Diamondback CNC muzzle device.
Q: What is the magazine capacity of the DB15?
A: 30+1 rounds. That is 30 in the magazine and one in the chamber. It uses polymer AR-style magazines.
Q: Is the DB15 direct impingement or piston?
A: Direct impingement. It uses a mid-length gas system.
Warranty and Manufacturer
Covered by the Diamondback Firearms factory warranty; warranty terms come from Diamondback Firearms.
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