Nice carbine. Should be able to contact the CMP and have the serial number checked for DCM gun. Supposedly they had records of all DCM guns.
The stock or bolt has been changed which is probably pretty common, but it has an M2 bolt but no cutout on the stock for the transfer bar. The stock does have a circle P, which indicated a replacement stock if I remember correctly. Someone will be along shortly to correct me if I’m wrong.