There used to be a lot of good gun shops and lots of surplus guns to be found.
Bought a lot of guns that needed restoring at the Hollis & Amherst Flea markets.
Riley's in Hookset had some good inventory and odd interesting stuff.
Lots of small shops I used to run across and stop at.
Back when all the big gun manufacturers were all around New England I would find a lot of odd gun related "stuff" that workers brought home.