Diamondback DB15 Obsidian DB1984K101 | 5.56 NATO | 11.5″
MSRP: $1,216.00
Your Price: $933.00
Diamondback DB15 Obsidian DB1984K101 is an AR-style semi-auto pistol chambered in .223 Rem/5.56 NATO with an 11.50″ 4150 CrMoV Black Nitride barrel, 11″ M-LOK handguard, SB Tactical SBA5 brace and a 30+1 Magpul PMAG.
The Diamondback DB15 Obsidian (MFG# DB1984K101) is an AR-style semi-automatic pistol chambered for .223 Rem/5.56 NATO and built around forged 7075 T-6 aluminum receivers. It pairs an 11.50″ 4150 Chrome Moly Vanadium, black nitride-treated barrel with an 11″ M-LOK anti-rotation handguard and an SB Tactical SBA5 arm brace for compact handling. For optics under $1,000, a compact 1x red-dot such as the Aimpoint PRO or a Vortex SPARC AR-style red-dot offers durable, fast target acquisition on this platform. Typical use cases include range training and practical/competition target work where a short, maneuverable AR pistol excels.
Product Specifications
- The manufacturer part number is DB1984K101.
- The UPC is 810035756250.
- The caliber is listed as .223 REM/5.56 NATO.
- The barrel measures 11.50 inches and is made from 4150 Chrome Moly Vanadium with a Black Nitride finish.
- The rate of twist is 1:8″ right-hand.
- The gas system is a Carbine-Length Direct Impingement design.
- The bolt carrier group is a shot-peened, magnetic particle inspected Mil-Spec 8620 carrier.
- The upper and lower receivers are forged 7075 T-6 aluminum.
- The handguard is an 11 inch M-LOK Anti-Rotation V4 S-Rail with full Picatinny and QD mounts.
- The brace is an SB Tactical SBA5 arm brace.
- The grip is a Magpul MOE K2 grip.
- The package includes a Magpul Gen M3 PMAG 30-round magazine for a 30+1 capacity.
- The muzzle device is a DB Obsidian Muzzle Brake threaded 1/2×28.
- The unloaded weight is approximately 6.25 lb.
- The overall length is 28.25 in collapsed / 31 in extended.
The DB15 Obsidian is configured for shooters who want a compact, modern AR-platform pistol with industry-standard controls and an emphasis on modular accessory mounting. Its 11″ M-LOK rail and Picatinny sections simplify adding lights, offsets or an optic; the 1:8″ twist and 11.5″ barrel make it suitable for typical 5.56/ .223 match and service-type loads used in short-barrel applications. Built with common Mil-Spec components and a Magpul PMAG included, it is ready for range work and competition-focused drills.
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