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geezerbutler
04-03-08, 20:46
What type proof marks or other marking features are typically found on a genuine Colt upper (receiver)?



I searched the forums and didn't come across a post that addressed this question.

Thanks

GEEZER
ksa464
04-03-08, 23:08
Lots of $ signs and wont shoot Wolf....at least thats what I have found.
RojasTKD
04-03-08, 23:55
Humm... my Colt shot several hundred rounds of wolf during it first outing a few weeks back.

The the OP, I don't really have an answer. I'm sure someone will have a better answer for you.
TWR
04-04-08, 07:48
Right before the forge mark it will have a C.
geezerbutler
04-04-08, 15:15
So it will have the "C" and then some other symbol beside the "C"?

Do these "forge marks" vary, or is the forge mark always the same?

I guess It would help to see various phots if there are several different combinations of "C's" and Forge marks depending on when/where the receiver was made.

Thanks
LTPhoon
04-04-08, 21:28
Right before the forge mark it will have a C.
Or not? My 6920 has a Cerro and Diemaco mark, but no C.
MMcfpd
04-04-08, 21:42
Not every Colt upper receiver has the C mark. If it does, you're good, but if it doesn't you still don't know. If it's a complete upper the barrel, bolt and bolt carrier should have C marks. Mine do, anyway.
variablebinary
04-05-08, 01:09
My Colts have come like this thus far or some combination of D or C

D on carrier
MPC on Bolt
C on Upper next to forge mark
C on barrel
Robb Jensen
04-05-08, 06:12
Some Colt Defense rifles have shipped with Diemaco M16 carriers and have the Diemaco mark instead of the typical C on the left side.
clarkz71
04-05-08, 09:30
My 6920 has a "C and Cerro Forge" mark on the right side of the receiver
above the foward assist.



http://i86.photobucket.com/albums/k120/clarkz71/Floridagunlaws004.jpg
OldNavyGuy
04-05-08, 09:43
the best way.., but not always true is the barrel markings and no evidence of a barrel swap
LTPhoon
04-05-08, 10:45
I just looked inside the upper of my 6920 in the groove in which the charging handle slides and there, just abeam of the rearmost carry handle attachment knob, is a big ol' stamped "C"! Plus all the other stuff VB and gotm4 outline is there, so I guess everything is GTG!
ksa464
04-05-08, 16:02
Humm... my Colt never has shot Wolf, even after several hundred tries..

Humm................?????????
TWR
04-05-08, 17:43
Ooops, I have a Diemaco upper has the stylized "D" and the splintered "A" forge mark. I would've swore it had a "C" on it.