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Posted: 3/6/2010 5:33:13 PM EDT
Today I took my new CMMG out and after about a hundred rounds, the gun locked up. After taking it apart, I find that one of my gas rings has deformed and was hanging up. Can anyone tell me what might be causing this problem?
Link Posted: 3/6/2010 6:21:34 PM EDT
- Check the interior of the carrier for defects that might cause the rings to hang up. Nothing detected......
- Replace the remaining two rings with a set of three new rings.
- Lube the new rings after assembly, and see if this corrects the problem.
Link Posted: 3/6/2010 7:47:21 PM EDT
There seems to be no problems inside the BCG. I ordered a single ring to replace all three today.
Link Posted: 3/6/2010 7:50:24 PM EDT
Link Posted: 3/7/2010 4:23:09 PM EDT
Are you applying plenty of lubricant on the gas rings before installing the bolt inside the bolt carrier ?
Link Posted: 3/7/2010 5:14:40 PM EDT
Plenty of lube,
Link Posted: 3/8/2010 6:48:41 AM EDT
I have been wondering what happens when a ring does not have enough of a gap installed. It seems logical that as the ring heats up the gap closes, if for whatever reason the gap goes to zero something would have to give.
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