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1/25/2018 7:38:29 AM
Posted: 11/14/2003 11:56:10 AM EST
The lower has a serial number engraved on it. Are there any upper receiver markings you can use to identify a specific upper, or even group of uppers, by? Thanks!
Link Posted: 11/14/2003 12:14:33 PM EST
Link Posted: 11/14/2003 1:23:14 PM EST
Originally Posted By DarkNite: Are there any upper receiver markings you can use to identify a specific upper, or even group of uppers, by? Thanks!
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Only the forging [u]contractor[/u],as [b]Troy[/b] said, lots of companies use the same forgings.
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