I traded like new a mosin T-44 for a pimped shined M.M. collector grade. I can imagine what you guys are thinking , but I needed a shooter. My all matching 243 1939 is too nice to shoot. This is an "ar" 1942 with typical renumbered parts, unfortunately MM added an additional slash in the X on the reciever, now looks like an asterisk I live in one of the most liberal states and it is very difficult to find milsurps in my area. This was the only way for me to go at this time. My question is , underneath the reciever serial no. there is a letter i, what does this signify? Thanks for any information!