There is Arms&Accessories up by my house in Cheviot. I was just in there on the weekend and no M14 clones, but they always have a little of this and that.
Milford gun in Old Milford has a lot of military type stuff too. Other than that there is Costellos in N. College Hill and Target world or Gangbanber world as some call it.
I have a connection to something you want and and I will PM you if I get an answer too.