I lost a part while cleaning a Mark I that was given to me. I have an exploded view that I printed off from the Ruger website. It is a piece of the recoil spring assembly. As I pulled the bolt out, I felt something hit me, and the recoil spring popped out which included the spring guide. On the exploded view that I have it looks like there is a small U shaped piece that appears at the base of the spring guide that I can not find. I believe that is the piece that hit me. First, does anyone have a Mark I, 2nd do you break it down that far to clean it, and three is that little U shaped piece at the base suppose to be permenant or is it suppose to be able to come off? If it is suppose to be permenant, I will just by a new assembly, if it is suppose to come off, I will keep looking for it, then still most likely buy a new assembly.

Nate