The Vaultek Rifle Series RS500i Biometric Gun Safe has rugged steel construction using Vaultek's signature metal forming techniques with anti-pry design features. The safe has pre-drilled mounting holes which allows for mounting from the bottom or the backside. Four solid steel locking bolts keep your items safely locked. The spring door in the RS500i allows for quick access to the contents of the safe by automatically opening when access is granted.