Picked up this S&W 340 M&P, .357 mag. today. It's a Scandium Alloy frame revolver. Weight 13.7 oz on my scale, S&W claims 13.3 oz. Front sight is XS Sight 24/7 Tritium Night sight. The most interesting thing about the 340 M&P is "NO LOCK"!!! This should be fun to shoot. http://www.smith-wesson.com/webapp/...57783_757781_757781_ProductDisplayErrorView_Y Wanna kill these ads? We can help!