I like those larger US Postal Service plastic/nylon 'boxes'. Good two handed carry, toss in all your stuff (handguns in zipped cases), dump empties in the bottom, sit flat ......
"Outlaw guns and only outlaws will have guns!" Unfortunately, we may be moving in that direction.
NRA Benefactor, Conservative!, VN '64-'65.
Never sell a gun or a car ... and retire rich!