Spacesaver weapons racks are TACOM approved and have a National Stock Number (NSN) for easy purchase for the US Military. They are pre-approved and meet all your security requirements. They eliminate the need for chains and are designed to hold any weapons system. You can change out the interiors to modify the cabinet as your weapon systems change. This allows you to have one weapon rack for all your requirements. You can visit the site at this link http://www.spacesaveruwr.com for complete details. We can serve you at Fort Sill, Fort Hood in Killeen, Little Rock Air Force Base, Tinker Air Force Base, and any other military facility across the USA.