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View Full Version : Who makes"CM" stamped AR bolts?


hawaii five-0
02-19-2011, 7:26 PM
I have a bolt marked CM that is not a Colt.Anyone know for sure?

Tony.
02-19-2011, 8:33 PM
CM = CMT (Continental Machine Tool)

dieselpower
02-19-2011, 10:14 PM
CM = CMT (Continental Machine Tool)

C=Colt
CM=CMT
CF=Colt I think the F is underlined, dont quote me, there is a thread on it here somewhere.
HT/MPI=BCM, which I think is CMT also

gmcal
02-19-2011, 10:53 PM
C=Colt
CM=CMT
CF=Colt I think the F is underlined, dont quote me, there is a thread on it here somewhere.
HT/MPI=BCM, which I think is CMT also

Both of my BCM bolts are marked "HP MP"

NiteQwill
02-20-2011, 5:25 AM
CMT "CM" Marked Bolt - NOT Colt.
http://i201.photobucket.com/albums/aa284/recce556/Bolt-CMT-CM.jpg

The rest of the info here: http://www.calguns.net/calgunforum/showthread.php?p=2509263#post2509263

dieselpower
02-20-2011, 8:22 AM
Both of my BCM bolts are marked "HP MP"

Sorry, I thought it was HT/MPI...my mistake, if you say BCM = HP MP, I will go with that.

gmcal
02-20-2011, 10:43 AM
Sorry, I thought it was HT/MPI...my mistake, if you say BCM = HP MP, I will go with that.

No need to apologize.