Originally Posted by
ABNAK
Got mine yesterday in the mail. Same markings as previously mentioned: HPMP and CM.
The CM is "engraved", if you will, and the same color as the rest of the bolt. The HPMP, however, appears to be a silvery color and "printed" (?) on. Any other MP-type markings I've seen on bolts was engraved like the CM is on this one.