I order a CMMG 14.5 M4 profile complete upper.  I have recieved it and was looking over it for marking and stamps this is what I found:  
The upper has a keyhole marking on the right side and M in front above the gas tube.
The barrel is marked CMMG MPC 5.56 NATO 1/7.
The bolt carrier and bolt have no stamps.

So my question are:
Who makes CMMG uppers?
Who makes CMMG bolt carrier and bolts?

Does anyone have marking/stamp from CMMG on their upper, carrier, and bolt?

EDIT: I guess we won't know who makes CMMG products after reading some post on there post in the industry section.

my CMMG lightweight middy has same markings as yours.  Nothing on bolt or carrier.

Well that makes me feel better. Thank you.

Not sure who makes the barrels but the upper is a cerro forging and the BCG are CMT.  Mine was marked CM on the bolt which is what CMT is now marking their standard BCGs.

CMMG builds their own uppers from receivers purchased from LAR. They state that they turn their own barrels & have them sent out for chrome. My CMMG uppers have Cardinal Forge marks & CM on the bolts. Barrel markings are the same.

My CMMG lightweight middy from AIM has no markings at all on the barrel or BCG.