Gadsden Dynamics has launched a new storage solution line aimed at keeping prepared citizens organized. The first product in this line, the AR-15 MagRack, is a wall-mountable magazine storage rack with slots to hold 12 AR-15 magazines. It can also hold two of many double-stack handgun magazines per slot.
This steel rack is made in Ohio and features mounting holes that are 16″ on center for mounting to standard wall stud spacing. This allows the rack to hold the weight of loaded magazines without issue.
This would be great for my safe door. No dimensions at website though.