Not trying to be a wet blanket here but it's apparent you know very little about the M1icon rifle, and that's ok. None of us are born with the knowledge. I've been studying, collecting and shooting the M1 rifle for 40 years. $900 could be a steal, or it could be a not-so-good deal. It would behoove you to find someone who is well-versed in the M1 rifle and have them accompany you to look at and evaluate it before you pull the trigger on the deal. Just sayin.......
Jon