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Old December 26, 2011, 12:36 PM   #2
Slamfire
Senior Member
 
Join Date: May 27, 2007
Posts: 4,070
Gas rings wear. Shooters advised me to replace the gas rings when the carrier moves due to gravity when the assembly is placed on the bolt head.

At some point your AR will stop functioning when the gas rings lose compression.

Just like your automobile. Rings wear in those things too.
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