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9/22/2017 12:11:25 AM
Posted: 3/16/2006 7:36:58 AM EDT
[Last Edit: 3/16/2006 8:12:14 AM EDT by 266-23]
The lugs on one bolt are getting just a little rounded on the sharp edges. According to USMC TM it would not be a good idea to transfer this bolt to another [well-used?] barrel. How much is too much wear?? 266

ETA: It seems as though the lugs on the barrel assembly hold up much better than the lugs on the bolt.
Link Posted: 3/16/2006 8:01:59 AM EDT
When the bolt fails a field reject gauage.
Link Posted: 3/16/2006 8:13:40 AM EDT

Originally Posted By Gregory_K:
When the bolt fails a field reject gauage.

Next question: Any place to get a good inexpensive one of these?
Link Posted: 3/17/2006 4:06:52 AM EDT
[Last Edit: 3/17/2006 4:08:40 AM EDT by Gregory_K]
M16 Max. Headspace Gage nsn 4933-00-070-7814 part no. 7799734 cost $30.00 Disassembly of bolt not needed, gage is cut for extractor and ejector clearance
FROM Bill Ricca
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