DIAMONDBACK FIREARMS DB15 - 556 NATO - 16" - 15" MLOK - 10+1 - BLACK
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Diamondback Firearms
DIAMONDBACK FIREARMS DB15 - 556 NATO - 16" - 15" MLOK - 10+1 - BLACK
The Diamondback Firearms DB15 in 5.56 NATO is a battle-proven, mil-spec AR-15 platform built for reliability, accuracy, and versatility — whether you're headed to the range or stocking your home defense arsenal.
- Chambered in 5.56 NATO / .223 Rem for wide ammo compatibility and performance
- 16" barrel with black hardcoat anodize finish for lasting corrosion resistance
- Forged 7075-T6 aluminum upper and lower receivers for strength and durability
- 15" M-LOK free-float handguard for lightweight accessory mounting flexibility
- Magpul MOE collapsible carbine stock for adjustable length-of-pull and comfort
- Includes one Gen 2 Magpul PMAG for reliable feeding right out of the box
Who This Is For
The DB15 is an excellent choice for AR-15 enthusiasts, competitive shooters, and first-time rifle buyers who want a well-built, feature-rich carbine without the premium price tag. Its M-LOK rail system and Magpul furniture make it an ideal starting point for customization, while its forged receivers and mil-spec construction satisfy shooters who demand proven reliability.
Specifications
| Brand | Diamondback Firearms |
|---|---|
| Model | DB15 |
| Caliber | 5.56 NATO / .223 Rem |
| Barrel Length | 16" |
| Capacity | 10+1 (CA Compliant) |
| Handguard | 15" M-LOK Free-Float Rail |
| Receiver Material | Forged 7075-T6 Aluminum |
| Finish | Black Hardcoat Anodize |
| Stock | Magpul MOE Collapsible Carbine Stock |
| Sights | None Included |
| Magazine Included | 1x Gen 2 Magpul PMAG |
| Action | Semi-Automatic |
Frequently Asked Questions
What optics or sights work best with the Diamondback DB15?
The DB15 ships without iron sights, so you'll want to add your own optic or backup sights. The upper receiver features a standard Picatinny rail, making it compatible with virtually any red dot, holographic sight, or magnified scope. Popular choices include the Sig Romeo5, Vortex Crossfire II, and Magpul MBUS backup sights for a simple, co-witnessed setup.
Is the DB15 a mil-spec AR-15? Will standard AR-15 parts fit?
Yes — the Diamondback DB15 is built to mil-spec standards using forged 7075-T6 aluminum receivers, making it compatible with the vast majority of standard AR-15 aftermarket components including triggers, pistol grips, handguards, and buffer systems. This makes it an excellent platform for building or upgrading over time.
This listing shows 10+1 capacity — can I use standard 30-round magazines?
This rifle is configured and sold in California with a 10-round capacity magazine to comply with state law. Standard 30-round Magpul PMAGs and other higher-capacity magazines are not legal for use in California. The included Gen 2 PMAG has been blocked or replaced to meet the 10-round limit. Always verify your local and state laws before purchasing or modifying magazines.
- Caliber:
- 556 NATO
- Capacity:
- 10+1
- Color:
- Black
- CA Compliant:
- Yes
- Style:
- MLOK
- Barrel Length:
- 16"
- Muzzle Type:
- Flash Hider
- Gas System:
- DI