Diamondback Firearms DB15 Rifle

Posted: 06/03/2026

Diamondback Firearms DB15 Rifle

Diamondback Firearms DB15 Rifle

The Diamondback DB15 chambered in .224 Valkyrie is a long-range, gas-impingement modern sporting rifle designed for the AR-15 platform. It features a 20-inch stainless steel heavy barrel with a 1:7″ twist, an M-LOK handguard, and optics-ready receivers. Includes hard case.

Specifications:

  • Caliber: .224 Valkyrie
  • Action: Semi-Automatic (Direct Impingement)
  • Barrel: 20″ Heavy Barrel
  • Twist Rate: 1:7″
  • Muzzle Thread: 5/8″-24 TPI
  • Upper/Lower: Forged 7075-T6 Aluminum
  • Handguard: 15″ Diamondback Aluminum Free-Float M-LOK with textured grip pads
  • Bolt Carrier: Mil-Spec 8620, Shot-Peened, MPI
  • Trigger: Mil-Spec
  • Weight: ~7.5 lbs
  • Overall Length: 41.25″