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1/25/2018 7:38:29 AM
Posted: 12/15/2003 3:13:08 AM EST
I need to know the thread pitch on an Olympic 10.5 inch upper so that I can get an adaptor made. Anyone have an idea or where I can find out?
Link Posted: 12/15/2003 6:14:25 AM EST
you could call Oly and ask them, or go to your local hardware store and buy a thread pitch gauge. sorry i don't have an Oly to tell you for sure.
Link Posted: 12/19/2003 5:50:33 AM EST
5/8 x 24. You can custom order the 9mm with the 1/2 x 28 though.
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