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Posted: 1/15/2006 11:32:28 AM EDT
Has anyone matched up a non-OLY upper with a GL lower?
Link Posted: 1/15/2006 3:25:38 PM EDT
The Colt/RRA type of uppers don't have an ejector or feedramp. They are on the magazine block. Oly uppers have the feed ramp on the barrel extension and the ejector is drilled and installed into the upper itself.
Link Posted: 1/15/2006 3:35:12 PM EDT
the tacked 9mm ar faq thread above will explain why there is oly style carbines and colt styles
Link Posted: 1/15/2006 3:40:57 PM EDT
Thanks, I will check the thread for more info..
Link Posted: 1/16/2006 9:05:30 AM EDT
Even a standard OLY upper must have a notch put into it. I believe that it is for the bolt hold open bar to fit. It looks to be a simple small notch.

Nox
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