Diamondback DB15 | 6.5 Grendel | 18″ | DB1732N061

The Diamondback DB15 is an AR-style rifle built around the 6.5mm Grendel cartridge with an 18-inch 4150 chrome-moly barrel and a 15-inch M-LOK handguard. It uses a mid-length gas system, forged 7075-T6 receivers, a shot-peened Mil-Spec 8620 bolt carrier, Magpul CTR stock and Magpul MOE-K2 grip. For a capable optic under $1,000 that pairs well for medium-range work, consider a Vortex Crossfire II 2-10×44 scope as a durable, cost-effective option.

Applications: medium-range hunting and precision target / competition shooting.

Product Specifications

• The UPC is 810035754133.
• The manufacturer is Diamondback Firearms.
• The model is DB15.
• The caliber is 6.5mm Grendel.
• The barrel measures 18 inches and is made from 4150 chrome-moly.
• The rate of twist is 1:8 right-hand.
• The gas system is a mid-length configuration.
• The bolt carrier is a shot-peened Mil-Spec 8620 carrier.
• The receivers are forged 7075-T6 aluminum.
• The handguard is a 15-inch M-LOK V-Rail.
• The stock is a Magpul CTR adjustable unit.
• The grip is a Magpul MOE-K2 style grip.
• The muzzle device is a 5/8×24 threaded flash hider.
• The finish is Flat Dark Earth matte.
• The action is semi-automatic.

Engineered for shooters who prioritize dependable components and modularity, the DB15 combines common AR ergonomics with features tuned for the 6.5 Grendel cartridge. Its 18-inch barrel and mid-length gas system support efficient performance at extended ranges while the 15″ M-LOK handguard offers easy accessory placement. The Diamondback DB15 is a practical choice for competitors and hunters seeking an AR-platform rifle configured for medium-range accuracy and adaptability.

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