I put in a single stand, bought long screw from ACEHardware and fix it into the factory holes. Double stand is ok. but the one outside cannot be used since the door will be blocked.
I found that out as well. It looks like you could fit another gun in the box, if you could cut down the metal piece that the door locks into. Was hoping to find a RU-vid video from somebody that had already done that.
This is a great way to bring rifles along...thank you for sharing..Also, may be able to use black silicone bead around brackets if you dont wanna drill holes (for resale)