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Posted: 6/30/2017 10:47:41 PM EDT
I took an M1-A in trade  that seems to be a bit of an oddity.  

Any thoughts on this?   A quick search came up with the cold blue test in which it didn't do anything using brownells 44-40 cold blue as I did run across some threads about bare bolts.  

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Link Posted: 6/30/2017 11:08:51 PM EDT
[#1]
Maybe the bolt is coated with Robar np3
Link Posted: 6/30/2017 11:18:28 PM EDT
[#2]
It does appear to be coated rather than plated. It is forged bolt, so it should be a good one.
Link Posted: 7/4/2017 3:46:37 PM EDT
[#3]
it's an isreali used part...
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