12ga Convertible

[Reggoh]

Calibers of ammo that the X Caliber allows a singe-shot shotgun to fire are .22lr, 38 special, .357, 9mm, 45 acp, 45 lc, .410 shotgun, 12 ga. shotgun, .223, 7.62×39 and 308

You can't buy all those rifles for $450... It's more of a survival tool than a practical replacement for your hunting rifle... If you think finding ammunition is hard now, wait until there is another great depression where our society starts breaking down... you will probably be using ammunition for barter