Diamondback Firearms DB15C 5.56 NATO Semi-Auto Rifle, 16″ Barrel, DB1718K061
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Home » Shop » Diamondback Firearms DB15C 5.56 NATO Semi-Auto Rifle, 16″ Barrel, DB1718K061
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$766.00Original price was: $766.00.$719.00Current price is: $719.00.
🚚 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.
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Diamondback Firearms DB15C is a semi-auto AR-style rifle chambered in 5.56 NATO with a 16" 4150 chrome moly barrel. This rifle suits shooters who want a carbine-length AR in Flat Dark Earth and plan to add their own optic or sights.
5.56 NATO semi-auto rifle
16" 4150 chrome moly barrel, 1:8" twist
30+1 round capacity, polymer AR-style magazine
15in M-LOK handguard with Picatinny optic rail
Overall length of 32.75"
SKU: DAV-DB1718K061 · Mfr part #: DB1718K061 · UPC: 810035756397
The Diamondback Firearms DB15C is a semi-auto rifle chambered in 5.56 NATO with a 16″ barrel. It runs on a direct impingement system with a mid-length gas system. The barrel is 4150 chrome moly with a 1:8″ twist, and it is threaded and topped with an A2 flash hider.
Up front, the rifle has a 15in M-LOK handguard. That gives you room to mount a light, a vertical grip or other M-LOK accessories. The top rail is an integral Picatinny at 0 MOA, so an optic mounts right on the receiver. The rifle has no sights, so plan on buying an optic or a set of backup sights.
Controls and Fit
The DB15C has a mil-spec trigger, a manual safety, a forward assist and a dust cover. The grip is a MOE, and the stock is a MOE PR Carbine. The finish is Flat Dark Earth. Overall length is 32.75″, and it feeds from a 30+1 round polymer AR-style magazine.
This rifle suits range days, training, and anyone building out a general-purpose AR. Good pairings are a red dot or low-power variable optic, a sling, extra 30-round magazines, and a weapon light on the M-LOK rail. Because the barrel is threaded, you can also swap the flash hider for another muzzle device.
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: What caliber is the Diamondback DB15C?
A: 5.56 NATO. The barrel is 16" long with a 1:8" twist.
Q: Does the DB15C come with sights?
A: No. The rifle has no sights, but it has an integral Picatinny optic mount at 0 MOA, so you can mount an optic or add backup sights.
Q: What is the magazine capacity of the DB15C?
A: 30+1 rounds. It uses a polymer AR-style magazine.
Q: Is the DB15C direct impingement or piston?
A: Direct impingement. It uses a mid-length gas system.
Q: Does the DB15C have a threaded barrel?
A: Yes. The barrel is threaded and has an A2 flash hider on the muzzle.
Warranty and Manufacturer
Covered by the Diamondback Firearms factory warranty; warranty terms come from Diamondback Firearms.
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