Diamondback Firearms Db15 300blk 16" Odg 15" Mlok
Diamondback Firearms
$679.69
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Diamondback Firearms
Diamondback Firearms Db15 300blk 16" Odg 15" Mlok
The Diamondback Firearms DB15 in 300 AAC Blackout delivers a hard-hitting, versatile AR-15 platform finished in Olive Drab Green — purpose-built for hunters, home defenders, and tactical shooters who demand reliability and modularity in a single package.
- 300 AAC Blackout caliber excels at both supersonic and subsonic loads
- 16-inch barrel provides optimal velocity and legal compliance nationwide
- 15-inch M-LOK handguard offers maximum accessory and light attachment flexibility
- Forged 7075 T-6 aluminum receiver ensures lightweight strength and durability
- Magpul MOE collapsible stock fits a wide range of shooter builds
- Includes one 30-round PMAG for immediate range-ready use
Who This Is For
The DB15 300 Blackout is ideal for hunters pursuing medium-sized game with subsonic suppressed loads, home defenders who want hard-hitting terminal performance in a compact package, and AR enthusiasts looking to step up to a caliber that bridges the gap between 5.56 and larger rifle rounds. The Olive Drab Green finish and modular M-LOK platform also make it a strong choice for anyone building a field-ready or duty-inspired carbine.
Specifications
| Brand | Diamondback Firearms |
|---|---|
| Model | DB15 |
| Caliber | 300 AAC Blackout |
| Barrel Length | 16 inches |
| Handguard | 15" M-LOK Rail |
| Receiver | Forged 7075 T-6 Aluminum |
| Finish | Olive Drab Green (ODG) |
| Stock | Magpul MOE Collapsible/Folding |
| Magazine | 1 × 30-Round PMAG |
| Capacity | 30+1 |
| Sights | None (optics-ready) |
| Action | Semi-Automatic |
Frequently Asked Questions
Can I use 5.56 or .223 ammunition in the DB15 300 Blackout?
No. The DB15 in 300 AAC Blackout is chambered specifically for 300 Blackout ammunition and is not compatible with 5.56 NATO or .223 Remington. Using incorrect ammunition is extremely dangerous. Always verify your caliber markings before loading. If you want to shoot 5.56, Diamondback offers DB15 models in that chambering as well.
Is this rifle suppressor-ready, and does it handle subsonic loads well?
Yes — the 300 AAC Blackout cartridge was specifically engineered for suppressed use, and this DB15 is an excellent host for a suppressor. With subsonic loads (typically 220-grain bullets), the cartridge cycles reliably in a properly tuned AR-15 platform. The 16-inch barrel works well with both supersonic hunting loads and subsonic suppressed configurations, making it one of the most flexible setups available.
What optics or accessories can I mount on the 15-inch M-LOK handguard?
The 15-inch M-LOK handguard is compatible with the entire ecosystem of M-LOK accessories, including tactical lights, laser aiming devices, foregrips, bipods, and sling mounts. The flat-top Picatinny upper receiver accepts virtually any AR-compatible scope, red dot, or holographic sight — no proprietary mounts required. This makes the DB15 an outstanding platform for building a fully customized hunting or tactical carbine.