The Diamondback Firearms DB15 is a 5.56 NATO semi-automatic rifle built around a proven direct-impingement gas system. Its 16-inch medium-profile barrel is made from 4150 chrome-moly vanadium steel, finished in black nitride, and uses a 1:8 right-hand twist. The rifle features a 15-inch M-LOK handguard, a flattop upper receiver, Magpul MBUS sights, an adjustable Magpul CTR stock, and a Magpul MOE K2 grip. Its OD Green Cerakote receiver and FDE furniture create a distinctive two-tone configuration, while the 1/2x28 threaded muzzle supports compatible accessories.

Key features

• 5.56 NATO chambering supports widely available rifle ammunition
• 16-inch 4150 chrome-moly vanadium barrel balances handling and performance
• Mid-length direct-impingement gas system provides a familiar AR-15 operating configuration
• 15-inch M-LOK handguard offers flexible accessory mounting with an extended support surface
• Flattop upper receiver is optic ready and includes Magpul MBUS front and rear sights
• Adjustable Magpul CTR stock accommodates different shooting positions and gear configurations

The Diamondback DB15 combines practical AR-15 features, a versatile 5.56 NATO chambering, and a distinctive two-tone finish for range, training, and recreational use.