Thread: Do you use a D-Ring in your AR15?
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Old July 14, 2012, 12:11 AM   #13
Quentin2
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Join Date: June 18, 2009
Location: NorthWest USA
Posts: 1,996
Quote:
not true, in some carbines(read: 10.5") a O-ring is usually required, but everything else should be fine.
The use of an O-ring in shorter barrels was already mentioned above.
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