Brand: Diamondback Firearms
Model/Series: DBX
Caliber: 5.7x28mm
Capacity: 30
Action: Semi-Auto
Barrel Length: 8"
Twist Rate: 1:9
Thread Pattern: 1/2x28
Brace: Strike FSA Dual Folding Brace
Grip: Magpul MOE K Grip
Overall Length: 16.9" - 25.4"
Weight: 4 lbs
Features: 6061 Aluminum M-LOK Handguard | Dual Gas Piston

Features

Compact, lightweight, and built to perform — the Diamondback 5.7x28mm PDW delivers exceptional control, high capacity, and rock-solid reliability in a purpose-built package. Perfect for range use, duty-minded shooters, or a compact defensive platform, this PDW blends modern materials and proven components into a sleek, maneuverable firearm.

Chambered in 5.7x28mm with a 30+1 capacity and an 8" 1:9 RH medium-profile 416R stainless barrel with Black Nitride treatment, this Diamondback PDW features a monolithic forged 7075 T‑6 upper, a locked-breech dual gas piston system with four positions, and a lightweight 3.9 lb overall weight — all finished in durable Black Cerakote.

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

Must be 21 or older to purchase.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).