Diamondback DB15 SBR .300 AAC Blackout 10″ 30rd Black

The Diamondback DB15 SBR is a compact, semi-automatic short-barreled rifle chambered in .300 AAC Blackout with a 10-inch barrel. It pairs a short, durable barrel with a V3 M-LOK handguard and Magpul furniture for a compact, user-friendly platform suited to close-quarters or suppressed-capable use. The rifle includes a 30-round Magpul PMAG and emphasizes lightweight forged aluminum construction.

Key Specifications

• Caliber is .300 AAC Blackout.
• The barrel measures 10 inches and is described as 1:8 right-hand twist.
• The rate of twist is 1-in-8.
• Standard feeding capacity is 30 rounds (one included Magpul PMAG).
• The action is semi-automatic.
• The handguard is a 9 inch V3 M-LOK anti-rotation rail with full Picatinny section.
• The upper/receiver is forged 7075 T-6 aluminum A3 flattop design.
• The lower/receiver is described as 7075 T-6 aluminum (DB15 Carbon Lower).
• The stock is a Magpul DT carbine stock with Magpul MOE grip indicated in specifications.
• The included magazine is a Magpul Gen PMAG 30-round.

Built around forged 7075 T-6 receiver components and Magpul control ergonomics, the DB15 SBR offers a compact, well-equipped platform in .300 AAC Blackout. Its short barrel and M-LOK handguard make it adaptable for accessory setups while keeping weight and length focused on portability. The package's Magpul magazine and furniture provide familiar handling and reliable feed geometry for owners seeking a stout, compact AR-pattern option.