Diamondback DB15 5.56 NATO

The Diamondback DB15 is a modern AR-style carbine chambered in 5.56 NATO designed for range use, training, and general-purpose applications. Its configuration emphasizes modularity and familiar AR ergonomics for users who want a straightforward platform with Magpul furniture and a free‑floating M-LOK handguard. The rifle’s threaded muzzle and standard AR controls make it compatible with common accessories.

Built on forged 7075-T6 aluminum receivers, the DB15 combines a durable receiver set with a medium-profile 16-inch steel barrel finished in black nitride for corrosion resistance. The 15-inch M-LOK handguard permits direct accessory attachment while the Magpul MOE grip and MOE carbine stock provide established ergonomics for a wide range of shooters.

Key Specifications

• The caliber is 5.56 NATO.
• The barrel length is 16 inches.
• The barrel is Diamondback Barrels 16 inches; 4150 Chrome Moly (CrMoV); Black Nitride finish; 1:8 RH twist.
• The bolt carrier group is shot-peened, magnetic particle inspected Mil-Spec 8620 carrier.
• The upper receiver is forged 7075 T-6 aluminum (A3 flattop).
• The lower receiver is 7075 T-6 aluminum.
• The handguard is a 15-inch M-LOK rail.
• The stock is a Magpul MOE carbine stock.
• The rifle ships with a Gen2 PMAG 30-round magazine.
• The muzzle device is an A2 flash hider with 1/2 x 28 threads.

The Diamondback DB15 offers a durable AR platform with common, serviceable components and ample accessory mounting options. For those searching for a DB15 rifle for sale, buy the Diamondback Firearms DB15 5.56 NATO online today as a versatile option for range and general-purpose use.