The height of the steel grid gives you options to add several accessories to customize your storage. Retrofit Kits, featuring CradleGrid Technology are designed to upgrade any traditional safe, gun cabinet or simply attach to a wall within a locked area for proper firearm storage. The cradle adjusts on louvered grids to support individual firearms at the barrel, rail or magwell and allows standoff to accommodate attached optics so there is no need to rezero when you retrieve a firearm. All firearms are stored in a single layer for straight line access, meaning you never have to move another gun to access the one you want. The system also promotes organization and visual awareness of every firearm for quick inventory allowing you to choose the one desired.