Need a little help folks. I'm going to try an XS big dot on an old S&W 640-1 J frame but I'm having trouble finding the pin size and a pin. I like to have a new pin on hand before I change a sight just in case I can't use the old one.
Also, is there a direction that the front pin has to be driven out and in? Right to left or vice versa?
Thanks and if you have an XS Big Dot on your 640, I'd appreciate it if you could share your opinions. I put a Meprolight on my Ruger but I'm thinking I'd like to try the big boy on my little 640.
Thanks all and happy Friday!!