Thanks for the instructions. I will get a tool for this.
My thought. Maybe heating the end of the head of the allen wrench before attempting to remove the hex screw in place of using a torch on the hex screw. Would likely have to hold the wrench with a pliers or vice grip?
This should transfer the heat to the hex screw.
Gents, it doesn't take much heat to get the set screw out. Be cautious of beating the hex wrench. They can lose their temper easily, especially thin ones. Some of the set screws require no heat at all. Try a little pressure prior to heating. It may pop loose all on its own.
I'm one of those old fools that always think they can do this kind of stuff. I'm in the midst of installing an Apex trigger kit and Apex RAM. Of course, my M&P 9 was purchased in 2008, so I had to buy a new sear block assembly from Brownells to get the required 1/8" spring for the replacement sear. Then I got to where I tried to push the rear sight off with various punches, hammers, and vises. After that didn't work I bought an inexpensive (this simple project was starting to cost some significant $) sight pusher on Ebay. Well, of course it was advertised for a Glock, but they also claimed it could be used for most any striker fired semi-auto. Well, it won't move the sight, either. Now I'm either going to have to take it to the LGS or buy a better tool.
Rant over, I can't give too much praise for this thread.I really wish I would have thought to look here first.
I recently tried to remove the rear sight on my new shield with no luck. The set screw loosened and was removed easily and I soaked the rear sight in penetrating oil, but I literally pounded the sight with a brass punch and a 2 lb sledge and the thing didn't budge. Looks like the sights on the newer Shields are not removable. Will either have to take it to a smith or buy a sight pusher and hope for the best.
Great thread. Too bad the pictures no longer work, but I appreciate the OP's effort and the subsequent discussion. In any case, I'm normally game to try DIY, but after reading through this I've decided I'll let a good gunsmith handle this task.