It's rather easy but be careful. You need to remove the rear sight to get to the release {http://i49.Photobucket.com/albums/f292/YukonGlocker/MP9/fps.jpg} by putting the slide in a block and tapping the sight out. Wish it was more like a 1911, but good luck. John
Take it to an authorized repair center or a qualified gun smith.
yes
To replace the firing pin in a Smith & Wesson Model 39-2, first ensure the firearm is unloaded and disassemble it according to the manufacturer’s instructions. Remove the slide and locate the firing pin, which is typically secured by a retaining pin or a spring. Carefully remove the old firing pin and replace it with the new one, ensuring it is properly seated and secured. Finally, reassemble the firearm and perform a function check to ensure everything operates correctly.
Smith and Wesson Model No. 2
Take it to a gunsmith
Best left to a trained and equipped gunsmith.
The frame size of a Smith and Wesson model 66 is K.
No such model listed in the Standard Catalog of Smith and Wesson. You will need to call the factory.
Smith&Wesson model 14
The smith and wesson model 18-3 was made from 1967-1976.
The Smith and Wesson model 19-5 was made from 1982-1985.
Standard catalog of Smith and Wesson by supica and nahas