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Old July 30, 2010, 10:54 AM   #9
riverwalker76
Senior Member
 
Join Date: February 13, 2010
Location: Kentucky
Posts: 993
You don't have to have the o-ring around the spring. That is usually an upgrade after-market part on most bolt carrier groups. You do need the spring and insert, however.

They are a piece of cake to install, and they go in .... just like it came out.

I've seen extractors break in civilian ARs due to excessive abuse and firing. The extractor gets hot like any other part, and with excessive heat ... it weakens. Some people try and fire their ARs like M-16s and they build up more heat than you could imagine.

If you need any help let me know.
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