I have a older Dan Wesson stainless 1911. This is my baby and the most accurate 45 I own.
The rear slide serrations are not very sharp or deep. There is very little grip when I rack the slide especially if any oil or sweat.
The front ones are fine but I do not use them.
I checked a local sort of Gun Smith and he does not have the right size cutting bit. I e mailed Dan Wesson but their shop was destroyed by fire!
I would like to get this done but don't want to pay a lot for this muffler
I have a lot of tools but no milling machine.
My other option is grip or skateboard tape.