The Diamondback DB15 Carbon Pistol 5.56 NATO with the SBA3 brace (brand part no. DB1916K001) is a 10-inch AR-style pistol from Diamondback Firearms. It uses a medium-profile 4150 CrMoV barrel with a black nitride finish and a carbine-length gas system, topped by a forged 7075 T-6 A3 flattop upper. The SB Tactical SBA3 brace gives a stable shooting platform, and a 9-inch M-LOK rail and Magpul MOE grip complete the front end. A Magpul Gen M3 PMAG 30-round magazine and an A2 flash hider are included.

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 brace is an SB Tactical SBA3, which gives the shooter a stable surface to support the pistol.
• The handguard is a 9-inch M-LOK rail, with attachment slots for lights and accessories.
• The grip is a Magpul MOE, a comfortable and 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.
• Weight is 5.7 pounds, and overall length is 25 3/4 inches, as listed by Diamondback with the brace.

Frequently Asked Questions

What brace comes on this DB15 pistol? Diamondback fits an SB Tactical SBA3 brace to this model.

How is this different from the foam pad version? This listing adds the SBA3 brace in place of a buffer tube foam pad and weighs 5.7 pounds, against 5.4 pounds for the foam pad version.

What is the gas system length? The pistol uses a carbine-length gas system with a 10-inch barrel.

Buy the Diamondback DB15 Carbon Pistol, 5.56 NATO, 10-Inch Barrel, SBA3 Brace

The SBA3-braced DB15 gives you a stable platform and a complete ready-to-run setup in a compact size. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and explore additional AR pistols while you are here.