Diamondback Obsidian DB15 5.56 NATO 16in 30+1 OD Green Magpul CTR stock

The Diamondback Firearms Obsidian DB15 blends duty-grade ergonomics with hunting and range utility, offering a 16" threaded barrel chambered in 5.56x45mm NATO, a 1:8" twist rate and muzzle brake that tame recoil for quick follow-up shots and consistent grouping in field or competition settings. The Obsidian Series upgrades include an enhanced bolt catch, ambidextrous safety selector and magazine release for fast, intuitive manipulation whether you're on the right-hand bench or moving through dense cover, and a free-float anti-rotation M-LOK S-Rail with full Picatinny and integrated QD mounts to accept lights, bipods and optics while preserving barrel harmonics. Built on a 7075-T6 aluminum receiver and fitted with a Magpul CTR MOE stock, the DB15 weighs 6.60 lbs, holds 30+1 rounds and measures 33"×36.25" overall, making it a balanced choice for hunters, competition shooters and tactical trainers who need an optic-ready, semi-auto AR-15 platform with proven materials and modular accessory options.