The Diamondback DB-15 pistol in .300 AAC Blackout with an 8-inch barrel and SBA3 brace (brand part no. DB191BB001) gives shooters an AR-pattern pistol built for the shorter-range, subsonic-capable .300 Blackout cartridge. Diamondback rifles the barrel at a 1-in-8 twist to stabilize a wide range of .300 Blackout bullet weights, and the platform ships with no sights, ready for the optic of the owner’s choice. A 30-round PMAG is included, and the SBA3 brace supports stable one-handed shooting. Among AR-pattern semi-auto handguns, this DB-15 configuration favors shooters who want a maneuverable .300 Blackout pistol platform.

Key Specifications

• The chambering is .300 AAC Blackout.
• The capacity is 30+1 rounds with the included PMAG.
• The barrel measures 8 inches.
• The rifling twist rate is a 1-in-8 twist for a wide range of bullet weights.
• The pistol ships with no sights, ready for an owner-selected optic.
• The brace is an SBA3, supporting stable one-handed shooting.
• The action is Semi-Auto.
• The upper and lower receivers are forged from 7075-T6 aluminum.
• The pistol grip is a Magpul unit.
• The finish is Diamondback’s proprietary black finish, applied for wear and corrosion resistance.

Frequently Asked Questions

Does this pistol include sights? No, it ships without sights so owners can add the optic of their choice.

What magazine is included? A 30-round PMAG ships with the pistol.

Buy the Diamondback DB-15 Pistol, .300 Blackout

A maneuverable AR-pattern platform built for .300 Blackout is exactly what this DB-15 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.