Diamondback DB15 Carbon Series 5.56 NATO AR-15, 16" Nitrided Barrel, Custom Red Accents — Excellent Condition
The Diamondback DB15 Carbon Series offers a lightweight, American-made AR-15 platform built around a forged 7075-T6 aluminum receiver set and a nitrided 16-inch 4150 CrMoV barrel. This example stands out with factory black hard-coat anodizing contrasted by aftermarket red-anodized controls and a long 15-inch free-float M-LOK handguard, delivering both visual appeal and practical versatility.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
Specific condition notes: Only minor, superficial scratches and small blemishes are present on the exterior surfaces.
What’s Included
- Diamondback DB15 Carbon Series rifle
- Magpul PMAG 30-round polymer magazine
- Lancer L5 AWM 30-round polymer magazine
- One unbranded 30-round polymer AR-15 magazine
The DB15’s forged A3 flattop upper features T-marked Picatinny slots, giving shooters a solid base for optics or iron sights. Anti-rotation screws secure the 15-inch free-float aluminum M-LOK handguard, helping maintain accuracy and allowing accessories to be mounted exactly where they are needed.
The nitrided 16-inch barrel is threaded 1/2-28 and capped with a classic A2 birdcage flash suppressor. Diamondback uses 4150 CrMoV steel for strength and long service life, and the nitride treatment aids corrosion resistance while easing maintenance.
Aftermarket upgrades add character and functionality. A red-anodized extended charging-handle latch provides a larger grasping surface, while the matching red QD end plate gives a quick-detach sling point. Selector pictographs on the lower receiver are color-filled for instant visual reference.
An adjustable six-position polymer stock, Magpul MOE pistol grip, and generous magazine package round out a rifle that is ready for the range, training, or general sport shooting.