Thanks JoeW, I did send a request to CMPicon, waiting to hear back from them, it appears that this rifle may have been an AMU built version, or updated by one of the many armorers at Camp Perry. It was purchased by my father from a good friend and fellow competitor at the matches, I don't know if his friend bougt it from the DCM earlier and had it updated, but the stock has no markings whatsoever, and the hand guard is screwed to the band, and it appears exactly as the photos i've seen of AMU rifles. It does not have any NM markings on the front sight, and only the rear sight aperature is marked NM, not the base or knob. Also I have read somewhere that AMU armorers polished the area of the barrel behind the op rod, and this rifle appears that way. Thanks to everyone for the valuable info....