This what works for me:
1-Americase two guns case, a bit heavy, but very compact, and with the cordura covering doesn't look too much like a gun case.
2-The same tufpak as mentioned above, takes 3 guns, and some extra room for other stuff, It doesn't look like a gun case at all, which is important to me.

I have used a ABS 2 guns as well, but it broke down on my last travel with it.
No harm to the guns, but I was really scared when opening to check it out...

HM