Diamondback DB-15 Pistol .300 AAC Blackout 8″ SBA3

About this product

The Diamondback DB-15 PIST is an AR-pattern semi-automatic pistol chambered in .300 AAC Blackout with an 8″ threaded barrel and an SBA3 stabilizing brace. It pairs a forged 7075 T-6 aluminum receiver with a 9″ PC M-LOK rail and Magpul ergonomics to deliver a compact, configurable platform. With a 30+1 capacity and 5/8×24 muzzle threads, the design supports a wide range of accessory integration for short-barrel applications.

Key Specifications

• The caliber is .300 AAC Blackout.
• The barrel length is 8″.
• The action is Semi-Auto.
• The capacity is 30 + 1.
• The receiver is Forged 7075 T-6 Aluminum.
• The rate of twist is 1-in-8.
• The muzzle thread pattern is 5/8×24.
• The included magazine is 1 30rd. PMAG.
• The grip is a Magpul Pistol Grip.
• The handguard is a 9″ PC M-LOK Rail.

Well-suited for users who value a compact, accessory-ready AR-platform pistol, the DB-15 balances durability and modularity without unnecessary complexity. Its forged receiver and familiar Magpul controls provide a stable foundation for range sessions or compact-purpose setups, while the threaded 8″ barrel and SBA3 brace allow for straightforward integration of muzzle devices and ergonomic upgrades. Consider this DB-15 when you need a concise, configurable platform for short-barrel applications.

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