Diamondback DB15 Rifle – 5.56 NATO, 16″ Barrel, M-LOK Handguard (UPC 810035755406)

The Diamondback DB15 is a high-quality, American-made AR-15–style rifle designed for reliability, accuracy, and performance. Featuring a 16″ barrel chambered in 5.56 NATO and a 15″ M-LOK free-float handguard, this rifle offers a lightweight yet durable setup perfect for sport shooting or tactical use. Built with precision and backed by Diamondback’s solid reputation, the DB15 delivers exceptional value at a competitive price point.

Purchase & Shipping Details – Flatline Firearms:

  • The listed price is the final out-the-door price, which includes shipping and sales tax.

  • Your local FFL dealer may charge a transfer fee upon pickup, which is not included in the listed price.

  • Once your purchase is made, a signed copy of your dealer’s FFL license is required before shipment can be processed.

  • Please allow 3–5 business days for shipping after your FFL information has been received and verified.

All firearms must ship to a licensed FFL dealer only. Flatline Firearms will not ship to any location where the item is prohibited by law.