I picked up three BCG’s from PK firearms last week. The bolts are marked CM. Someone tried to remove the manufactures mark from the carriers but missed this one.
Looks like a C. What do you think? Colt? Why remove the mark?
Also who marks there bolts CM?
http://generalcartridge.net/images/PICT2902.JPG
http://generalcartridge.net/images/PICT2899.JPG
http://generalcartridge.net/images/PICT2905.JPG

