Diamondback DB15 5.56 NATO

The Diamondback DB15 Obsidian is built as a versatile AR-style platform that emphasizes dependable components and modern ergonomics. It is suited for range use, training, and general-purpose applications where a balanced, configurable rifle is desired. The Obsidian series combines mil-spec internals with user-oriented controls for straightforward operation.

Constructed with forged 7075-T6 aluminum receivers and a mid-length gas system, this DB15 model pairs proven materials with a 15-inch M-LOK handguard for accessory mounting and improved handling. The rifle is finished in Flat Dark Earth Cerakote and includes ambidextrous controls and a Magpul CTR stock for a familiar AR-15 shooting position and interface.

Key Specifications

• The caliber is .223 Rem / 5.56 NATO.
• The barrel length is 16 inches.
• The barrel is a 16-inch 4150 Chrome-Moly Vanadium with a 1:8 RH twist and black nitride finish.
• The gas system is mid-length.
• The bolt carrier group includes a shot-peened Mil-Spec 8620 carrier with magnetic particle inspection.
• The receivers are forged 7075-T6 aluminum upper and lower.
• The handguard is a 15-inch M-LOK anti-rotation V4 S-Rail with full Picatinny and QD mounts.
• The stock and grip are a Magpul CTR stock and Magpul MOE K2 grip.
• The rifle ships with a 30-round Magpul Gen M3 PMAG (30+1 capacity).
• The muzzle device is a DB Obsidian muzzle brake threaded 1/2×28.

With a combination of durable materials, accessory-ready handguard, and ambidextrous controls, the DB15 Obsidian presents a practical, configurable AR platform. Buy the Diamondback Firearms DB15 5.56 NATO online today to add a feature-rich AR-style rifle to your collection.