Diamondback DB15 Obsidian 5.56 NATO 16 in FDE

About this product

The Diamondback DB15 Obsidian is an AR-style rifle built on forged 7075 T-6 aluminum receivers and chambered for .223 Rem/5.56 NATO. It features a 16 inch 4150 Chrome-Moly Vanadium barrel finished in black nitride with FDE Cerakote and a 15 inch M-LOK anti-rotation V4 S-Rail handguard. Ergonomic controls include a Magpul CTR carbine stock and Magpul MOE K2 grip in FDE, plus Battlearms ambidextrous safety and other enhanced controls. The rifle ships with a Magpul Gen M3 30-round PMAG and is specified at approximately 6.60 lbs unloaded.

Key Specifications

• The rifle is chambered in .223 REM/5.56 NATO.
• The barrel length is 16 inches with a 1:8 rate of twist.
• The barrel material is 4150 Chrome-Moly Vanadium with a black nitride w/ FDE Cerakote finish.
• The gas system is mid-length, direct impingement.
• The handguard is a 15 in M-LOK Anti-Rotation V4 S-Rail with full Picatinny and QD mounts.
• The stock and grip are Magpul CTR stock and Magpul MOE K2 grip in FDE.
• The bolt carrier group is shot-peened, magnetic particle inspected Mil-Spec 8620 carrier.
• The muzzle device is a DB Obsidian muzzle brake (1/2 x 28).
• The included magazine capacity is 30 + 1 with a Magpul Gen M3 PMAG supplied.
• The unloaded weight is approximately 6.60 lbs.

Balanced for range use, training, and practical field applications, the DB15 Obsidian combines proven materials and familiar controls into a ready-to-use AR platform. Its component selection—including a forged 7075 receiver set, nitrided 4150 CrMoV barrel, mid-length gas system and Magpul furniture—delivers a practical mix of durability, ergonomics and modularity for shooters seeking a capable, feature-rich rifle.

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