On Fri, 23 Feb 2018 19:11:13 -0000 (UTC), Bill
wrote:

It is pretty hard to find any kind of gun with a detachable magazine
where they don't have big ones. It is certainly true of the Rugers.


Lots of weapons do not have enough call to manufacture extended magazines.
ARs do.

You just live in a place where they are illegal. It is pretty hard to
find SAs these days that somebody is not selling a high cap magazine
for. You are right that there may be some obscure ones but not that
many.