[ARCHIVED THREAD] - Help with upper markings

Posted: 9/27/2008 10:04:41 AM EDT

Upper has a Square on it and barrel is marked 556. Thats the only marking I can find. Who makes this upper?

Posted: 9/27/2008 10:26:20 AM EDT

[#1]

Pics. will help.

Identifying some uppers is difficult and sometimes impossible.

Posted: 9/27/2008 7:00:07 PM EDT

[#2]

I've seen Olympic barrels in 45acp marked that way. I don't know if they mark their 223/556 barrels in the same fashion. As for the FSB I haven't the foggiest.

Posted: 9/29/2008 2:01:44 PM EDT

[#3]

Quoted:
As for the FSB I haven't the foggiest.

And neither has anyone else. To my knowledge, there is absolutely no detailed info out there on who forges front sight bases. All I know for sure is that all 4 of the bases on different Bushmaster barrels I've owned over thwe last 25 years all had a crown forge mark on the left side.

[ARCHIVED THREAD] - Help with upper markings

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[ARCHIVED THREAD] - Help with upper markings

[ARCHIVED THREAD] - Help with upper markings