Ask a gunsmith.
You can get a manual for free by going to S&W's web site.
Go to Smith and Wesson's website and download/request a manual. Find a bookstore and look for a series of books by J.B. Wood on fireams disassembly.
Call S&W and they will tell you when it left the factory.
5946-800 = 5146
Someone who is familiar with S&W semi-autos can make it "feel" better, but, since it is a DAO you will always have the long pull.
You can request an owner's manual for free at the S&W web site.
good killer i poped sum fooles in my hood
a serial number for a model 29 sw is 72-486
how do you disassemble a model 49 ithaca 22 rifle
Which model??
If you go to the S&W website, you can request a owner's manual at no cost.