Hello Eric, Would much appreciate your input. I will call between 12 & 1 Eastern. Hello offrdmania, good question. I was able to replicate the symptom with a replacement roll pin from Williams Gun and then without any roll pin. At the point where the slide hits something (approx. 5mm from 'at rest' position) the edge of the hole in the frame for the roll pin is just barely visible. On another topic, I noticed the four photographs I uploaded are not with my previous post. I made certain that all four combined were well under the size limit. Learning curve probably. But that is for another day.