Try gun shows, pawn shops, online auctions, want ad, for sale ads, estate sales, garage sales, etc..
Started in 1983
100-450 USD or so
10 to 1
Call Smith and Wesson and they will send you one. Go to their website and you can download one.
100-400 USD or so
Contact S&W
50-500 USD or so
Which model? The best thing to do it check the owners manual.
YOu need a gunsmith or call S&W and ask for a owners manual
Call S&W, want ad, on line auction.
Go the S&W website and request one.
You must follow the instructions in the owners manual or call S&W