Diamondback Db15 Dia Db1913K001 5.56 7In Crbn Pstl 30R Blk

The Diamondback DB15 5.56 NATO pistol is a compact, semi-auto platform built on proven AR architecture for shooters who want modularity and reliability in a shorter package. This 7-inch barreled pistol pairs the versatility of the AR system with the maneuverability you need for close-quarters drills, home defense, or backcountry carry. Whether you're building your first AR pistol or adding a nimble training tool to your safe, the DB15 delivers solid Diamondback quality without unnecessary complexity.

The receiver set uses forged 7075 T-6 aluminum throughout—upper and lower alike—with a no-frills A3 flattop design that's easy to upgrade with optics or iron sights down the road. The heavy 4150 CrMo barrel wears black nitride for durability, and the 1-in-8 right-hand twist stabilizes a wide range of 5.56 loads. A mil-spec, shot-peened carrier and magnetic-particle-inspected bolt ensure reliability you can count on, while the standard trigger keeps things straightforward and maintenance-simple.

The SBA3 brace provides a stable platform for shouldering, and the 6-inch M-LOK handguard gives you real estate for lights, vertical grips, or other accessories without bulk. It ships with a 30-round Magpul PMAG Gen2—ready to run out of the box. At 5.4 pounds and just over two feet collapsed, this pistol feels right in your hands whether you're running drills at the range or stowing it in a bag for training or travel. No sights are included, so you can mount whatever aiming solution fits your mission.

Key Features

• 7-inch heavy 4150 CrMo barrel with A2 flash hider and black nitride finish
• Semi-auto, pistol-length gas system for reliable cycling with standard ammunition
• Forged 7075 T-6 aluminum upper and lower receivers with A3 flattop
• Mil-spec bolt carrier group with shot-peening and magnetic particle inspection
• SBA3 stabilizing brace for shouldering support
• 6-inch M-LOK handguard for accessory mounting
• Magpul MOE grip included
• Comes ready with 30-round Magpul PMAG Gen2
• No sights—open for your choice of iron sights or red dot

Specifications

Frequently Asked Questions

What kind of sights or optics can I mount on the DB15?

The flat-top upper receiver features standard AR picatinny rail mounting, so you can add any compatible AR optics—red dots, magnified scopes, iron sights, or hybrid setups. The handguard's M-LOK slots also give you options for offset mounts or other accessories. You'll need to source your sighting solution separately.

Is this a rifle or a pistol, and where can I legally own one?

The DB15 is classified as a pistol due to its short barrel and brace configuration. Regulations vary by state and federal law regarding braced pistols. Always verify local and state laws before purchase; we recommend consulting an attorney or your local law enforcement if you're uncertain about legality in your area.

What magazine does it use, and how many rounds does it hold?

The DB15 accepts standard AR-15 magazines and ships with a 30-round Magpul PMAG Gen2. You can use any compatible 5.56 NATO AR magazine.

Does it come ready to shoot?

It ships with a 30-round magazine included, but it does not include sights. You'll need to mount optics or iron sights and perform standard firearm safety checks before use. A quick function check and proper handling are always recommended with any new firearm.