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Posted: 3/22/2006 1:01:34 PM EDT

Looks like a key hole - inside there are three dots - vertical.
Link Posted: 3/22/2006 1:43:05 PM EDT

Originally Posted By GETSUM:
Looks like a key hole - inside there are three dots - vertical.



Try here: www.ar15.com/forums/topic.html?b=3&f=12&t=223495

Looks like maybe the 3rd down on the UPPER RECEIVER MARKINGS list.
Link Posted: 3/22/2006 7:50:37 PM EDT
[Last Edit: 3/22/2006 8:12:57 PM EDT by GETSUM]
Looks like it is probably the CERRO Fabricated mark -----



Link Posted: 3/24/2006 5:08:46 AM EDT

Originally Posted By GETSUM:
Looks like it is probably the CERRO Fabricated mark -----






Yes, it's Cerro---BUT THEY DIDN'T MAKE THE UPPER!!!

Sorry to shout, but it does get a bit tiring to see people asking the same damn question over and over and over again.

That is a forge mark, to indicate who produced the raw forging but every manufacturer uses the same few forges for their raw pieces,----so you still don't know who made the damn thing.

Colt historically has had an indicator on their uppers, as to it being one of their products---but no other maker, to my knowledge, does so.


And if you'd done a search before posting, you'd have learned this from past threads--and I wouldn't have shouted at you
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