Getting on base would be the largest obstacle. For those of us that have a CCW, one would have to leave the weapon at home before entering the base. Anyone that enters the base today has to have a background check so this is also a problem.
It’s ONLINE only. You still need to be active/reserve/retired to physically shop on base/post.
Do you have a training gun range nearby, some will ‘hold’ your gun so you can go on base.