RIFLE: DIAMONDBACK FIREARMS MODEL DB15 RIFLE IMPORTED BY DB, SERIAL NUMBER DB2496829, 2- TONE, CASE NOT INCLUDED, SEMI - AUTOMATIC, 5.56 NATO, 17.5" Notes: The Diamondback Firearms DB15 is a semi-automatic rifle chambered in 5.56x45mm. The DB15 designation encompasses multiple configurations, and exact features can vary by model, production year, and configuration. The firearm should therefore be identified by its specific markings and model designation. Includes Sig Sauer TANGO-MSR Scope. Item details Manufacturer: Diamondback Firearms Model: DB15 Caliber: 5.56x45mm Action: Semi-automatic Type: Rifle Series: DB15