I agree, the M6 Scout, Although sometimes found with a .22 Hornet over the .410.

good news is you can take it apart and put it in a pack.

If you like that, try a J.P. Sauer and son drilling, more innocuous than the military looking M6. Of course, priced a lot higher. normally 12x12 with a 7x57 tube underneath. sometimes a
16x16 x something as well.