The Diamondback Firearms DB15 Black Gold is a .350 Legend semi-automatic rifle built around a direct-impingement operating system and forged 7075-T6 aluminum receivers. Its 16-inch 4150 chrome-moly barrel features a 1:8 twist and a threaded muzzle, while the 15-inch M-LOK handguard provides flexible accessory mounting. A Magpul CTR stock, Magpul MOE K2 grip, enhanced trigger guard, forward assist, and dust cover complete the practical AR-style configuration. The A3 flattop receiver is optic ready, and the rifle includes one polymer AR-style magazine.

Key features

• Chambered in .350 Legend for a capable straight-wall rifle cartridge
• 16-inch 4150 chrome-moly barrel with a 1:8 twist
• Direct-impingement gas system with pistol-length gas system
• 15-inch M-LOK handguard supports flexible accessory placement
• A3 flattop receiver is ready for an optic or sighting system
• Magpul CTR stock and MOE K2 grip improve handling and adjustability

The DB15 Black Gold combines a practical AR-style layout with .350 Legend capability and modern accessory compatibility.