The Challenger Series is built with quality and protection in mind. The door is built using 12-Gauge outer steel with a full 14-Gauge inner plate providing more security and door rigidity to any safe in its class. The 12-Gauge steel walls house 5/8" Type X fireboard along with a heat-expanding fire seal surrounding the door frame to give 60-minutes of content protection against a 1200 Fahrenheit fire. Up to 12-1" doorbolts secure the safe against unlawful break-ins. A double-steel door casement further enhances the pry resistance of the Challenger Series. Included with a 5-spoke handle, external hinges for a 180 opening, high-capacity gun racks, adjustable shelving and a plush interior, you will find that the Challenger Series is the strongest choice in a dollar-to-dollar comparison.