AR15.Com Archives
 Best finish/coating to protect AR lower
playinARound  [Member]
4/10/2012 9:30:14 PM
Doing a couple of builds and I'm looking for a finish/coating that will protect my lower from corrosion and help em stand up to hard use.

A couple years back I had a couple of lowers cerakoted and I was not impressed. After working the action/ charging handle a half dozen times, it sliced through the cerakoting to bare metal (and a lot). Not exactly confidence inspiring. One of the receivers later got pitting. ????? Kept in the safe, cool and dry.

What other finishes/coatings are available for my needs?
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Gamma762  [Team Member]
4/11/2012 12:12:57 AM
Something wrong with the milspec anodizing?

Something like Moly Resin over the anodizing would just add more protection.

If you're building 80% receivers or something and not anodizing them, nothing else is going to help you all that much.
enforcer22  [Member]
4/11/2012 12:34:08 AM
CeraKote H series
jforbush  [Member]
4/11/2012 9:44:54 AM
for sure H series Cerakote!!
playinARound  [Member]
4/11/2012 10:37:43 PM
What about nickel boron or NP3 plus?
enforcer22  [Member]
4/12/2012 9:32:06 AM
We only use CeraKote, GunKote, and DuraCoat. I did some pretty extreme testing on each of them before we started applying them. Each has their strength and weakness. So I cant make an informed judgement on other coatings. Any of the thermal coatings will give you a great looking long lasting finish.
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