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2arkba
03-09-12, 08:31
You probably can not see the wear/marring in the pic but is it normal for a bolt to show wear signs on the corner of the lug highlighted in blue?

11457
patrick sweeney
03-09-12, 11:32
That corner is relieved to allow the lug clearance for camming into place. I would expect to see it rubbed bright after some shooting or hand-cycling.

Why?
2arkba
03-09-12, 11:40
I wanted to know if was any indication of an over gassed upper or out of spec bolt
SpankMonkey
03-11-12, 14:04
I wanted to know if was any indication of an over gassed upper or out of spec bolt

Are you having problems with the rifle?
2arkba
03-12-12, 21:07
Are you having problems with the rifle?

no not at all... thousands of rounds down the pipe with out any issues but I was wondering if the wear pattern is normal... that particular bolt had about 1000 rounds on it when the pic was taken
Clint
03-12-12, 21:17
As Patrick said,

That is a normal design feature of the bolt. The barrel extension has a matching set of chamfers as well.

These allow the bolt to transition from forward to lock in a smooth manner.

You have nothing to be concerned about.