The Diamondback DB15 Carbon Pistol 5.56 NATO (brand part no. DB1915K001) is a 10-inch AR-style pistol from Diamondback Firearms that uses a buffer tube foam pad rather than a brace. It is built around a medium-profile 4150 CrMoV barrel with a black nitride finish and a carbine-length gas system. A forged 7075 T-6 A3 flattop upper and a Diamondback Carbon lower hold a 9-inch M-LOK rail and a Magpul MOE grip. It ships with a Magpul Gen M3 PMAG 30-round magazine and an A2 flash hider.

Key Specifications

• Chambering is 5.56 NATO, the standard AR-15 cartridge with wide ammunition support.
• Barrel length is 10 inches, compact enough for quick handling.
• The barrel is a medium-profile 4150 CrMoV with a black nitride finish and a 1:8 right-hand twist, which stabilizes a wide range of bullet weights.
• The gas system is carbine-length, a proven layout for dependable cycling.
• The upper is a forged 7075 T-6 aluminum A3 flattop, which offers a strong base for an optic.
• The handguard is a 9-inch M-LOK rail, with attachment slots for lights and accessories.
• The grip is a Magpul MOE, a comfortable, widely used pattern.
• The magazine is a Magpul Gen M3 PMAG, which holds 30 rounds.
• The muzzle device is an A2 flash hider on a 1/2×28 thread, ready to swap for other muzzle devices.
• The finish is black hardcoat anodize, and the pistol weighs 5.4 pounds at a 26-inch overall length.

Frequently Asked Questions

Does this DB15 pistol come with a brace? No. Diamondback lists a buffer tube foam pad on this model, and the SBA3-braced version is a separate listing.

What magazine is included? It comes with a Magpul Gen M3 PMAG that holds 30 rounds.

Does it have sights? No. Diamondback lists no sights on this pistol, so the A3 flattop upper is ready for an optic or iron sights of your choice.

Buy the Diamondback DB15 Carbon Pistol, 5.56 NATO, 10-Inch Barrel, Buffer Tube Foam Pad

A 10-inch DB15 with a black nitride barrel, M-LOK rail and 30-round PMAG gives you a ready base for an optic. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse our other AR pistols too.