Diamondback DB15 Carbon-Series 5.56 NATO AR-15 Rifle – 16" Chrome-Moly Barrel, Free-Float 15" M-LOK Rail, Adjustable Stock
Diamondback’s DB15 Carbon-Series brings reliable, American-made performance to the AR-15 platform. Forged 7075-T6 receivers, a chrome-moly 16-inch barrel with 1:7 twist, and a full-length 15-inch free-float M-LOK handguard give this rifle solid fundamentals, while factory-installed flip-up sights and a threaded muzzle offer ready-to-customize versatility.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good – clean and shiny, minor wear marks.
Rifling: Good – intact, well-defined lands and grooves.
Specific Condition Notes: Light scratches and small blemishes are present on the receivers and handguard from normal handling, but finish wear is limited and all controls function correctly.
What’s Included
- Diamondback DB15 Carbon-Series 5.56 NATO rifle (factory configuration)
- Flip-up MBUS-style polymer sights, front and rear (FDE, installed)
- Four 30-round magazines: one Magpul PMAG Gen M2 polymer magazine and three DuraMag SPEED aluminum AR-15 magazines
The DB15 Carbon-Series pairs a forged, hard-coat anodized 7075-T6 aluminum receiver set with a lightweight but rigid 15-inch M-LOK aluminum handguard. The free-float design helps the chrome-moly barrel stay consistent shot to shot, and the generous rail space makes mounting lights, optics, or other accessories straightforward.
A 16-inch barrel with a 1:7 twist stabilizes a broad range of 5.56 NATO and .223 Remington bullet weights. The muzzle is threaded 1/2-28 and capped with a standard A2 flash hider, so adding brakes, comps, or suppressor mounts is simple.
The rifle’s direct-impingement action, multi-caliber marked lower, and adjustable six-position stock provide familiar AR-15 ergonomics with room for growth. Diamondback lists the rifle at a $748 MSRP, giving shooters a value-oriented entry into an American-built carbine configured for modern accessories.