HMC High Security Tubular Locking System Easily Mounts Into First Watch 8, 10, & 14 Gun Cabinets Allows for the Separate Storage of Ammunition 4 Mounting Holes (Phillips Screws Included) Full-Length Piano Hinge & 1.0 mm Steel Maximize your firearm storage with the First Watch 10 Gun Safe Add-on Box. This ammunition cabinet is the perfect addition to your existing First Watch 10 Gun Safe, providing a dedicated and secure space for ammunition storage. The First Watch 10 Gun Safe Add-on Box includes four mounting holes for easy and secure installation. It is designed to integrate seamlessly into an existing gun cabinet, creating a unified storage solution. The construction of this 1.0 mm steel gun ammo cabinet includes a robust full-length piano hinge, offering improved durability and reliable protection. This small ammo cabinet has an HMC high-security tubular locking system for additional security and protection. The First Watch 10 Gun Add-on Box is not just a gun safe add-on but an essential tool in helping to keep a cabinet clutter-free and is a must-have for firearm enthusiasts who value organization and security. Since 1947, Homak has maintained its reputation as an industry leader in manufacturing durable products of exceptional quality. A business that started out manufacturing steel kitchen cabinets has evolved into a fierce competitor in the gun safe and ammunition storage cabinet industries. When you need dependability you can count on, nothing beats a Homak. Looking for other sizes? We offer First Watch Add-on Boxes for 8 Gun and 14 Gun safes as well.