Mack I see the 2 you are remembering, I am looking at a parts schematic on line, thanks for pointing out its the one on the left.
I was trying to find the parts that JudgeColt and 5906fan said. I took the slide off one of the guns and see that the plunger in the slide parts #11 and #12 push down part #10 when the magazine is removed and the magazine pushes #10 back up when it is reinserted.

Next question for any of you is can I remove the part #10 in the schematic (Ejector & Magazine Depressor) and accomplish the same thing or does that part serve another function as well? I am changing the hammers on 2 of the guns so part #10 will be easy to just not reinstall, if it does the same as removing #11 and #12 and is not needed for anything else.


Thanks for the gunsmith 101 class everybody.


Schematic for Smith & Wesson® 3913 LS/NL - World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools