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 How to tell upper manufacturer
sargebailey  [Member]
2/16/2012 7:03:13 PM
Hi i was told that my upper was a dpms 7.5 inch upper. Is there any markings on the upper or barrel that i can verify this with?
Gingerbreadman  [Team Member]
2/17/2012 12:36:15 AM
You might find markings on the top of the barrel, just ahead of the gas block.