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Old 06-08-2014, 09:05 PM   #11
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Neither of my M16 bolt carriers have chrome bolt bores.
Not sure if you mean the bore or the bolt carrier finish, but either way, just a little oil is good. More oil will make no difference except it will capture more residue and turn into soot.

Anderson Arms produces an AR15 with a proprietary "no lube" metal treatment. I ran at least 500 rounds through it totally dry and degreased, no problem. For other AR's, a puff of remoil after cleaning does it for me.


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Old 06-08-2014, 09:26 PM   #12
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I will disagree with some of the posted chart on lube. Firing pin - Dry. Gas rings - dry or powered graphite. Liquid lube on gas rings will turn crusty in a few rounds and can cause problems.



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Old 06-08-2014, 09:29 PM   #13
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I will disagree with some of the posted chart on lube. Firing pin - Dry. Gas rings - dry or powered graphite. Liquid lube on gas rings will turn crusty in a few rounds and can cause problems.
I did not read the chart, can only agree that oilis for the bolt body. Firing pin or any components of the gas system, forget it.
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Old 06-08-2014, 09:29 PM   #14
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I like Sentry Solutions dry lube on my AR's. Their "armorers kit" has everything you need including powdered graphite for the gas rings

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Old 06-09-2014, 12:56 AM   #15
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When I lube my bolt/carrier I use Mobil1. Being synthetic, the oil has a higher tolerance for heat and doesn't burn off as quick. Haven't had any problems with rings galling, or powder residue sticking badly. I wiped down my guns with Mobil1 also. Haven't noticed any rusting issues either here in Midwest, but I suppose it could happen if I didn't watch for it.

I've heard/seen good reviews on Frog Lube, SLP and others, but do you necessarily get better treatment for the costs, will be debated for decades.



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