RE: Sig 1/5 Cub Build Help
I think the way they designed it, you are just supposed to have a "snug" fit to keep the top door in place. But that sometimed doesnt work out. What I did was glue two small peices of wood that stick up past the top of the bottom door and then I glued small magnets to them. Then on the top door you can glue 2 more magents so they line up with the magnets on the bottom door. That way when the to door closes it has a magnetic hold. to open it you can turn the handle for the bottom door and pull out and you can then open up both doors.