I have a steel ramp insert in the pistol Mr. Rogers worked over for me as well. I cannot speak for him, and hopefully he will come back and explain his reasons for this modification in his own words, but I do not think this insert is intended to be "replaceable".
Originally Posted by 91wm6
The insert is a great idea though, well executed by a master as this example is.
As always Chuck.... Lots of thought , care & hard work into your builds!