The Lockdown Magazine Rack is ideal for keeping AR-15 magazines organized. It conveniently holds up to 10 magazines either loaded or unloaded. It is designed to stand upright on a shelf or any flat surface or it can easily be mounted to a wall or vault door. It is compatible with both mil-spec and polymer mags. Holds any "in line" magazine from 10 round up to 30 round. The vinyl coated steel structure is durable and wont scratch or mar surface finishes. Organizing and free up room in your vault or gun room Free-standing or mountable (mounting hardware included) Non-marring vinyl coating Compatible with all in-line mags from 10 round up to 30 round