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Old August 10th, 2018, 07:25 AM #31
jjones88 jjones88 is offline
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Originally Posted by My Toy View Post
So for the thousands of unmarked pre-anodized 80% lowers out there that have been completed and probably can't be sent out to be re-anodized what would the best course of action to increase the longevity of bare aluminum trigger and hammer pin holes?
Most likely not worry about it. If your pin holes are properly drilled then the pins will move very little causing them to egg out. Also, if you aren't mucking around with the trigger group, you aren't inserting punches and hitting with a hammer. Most people will never even come close to the round count needed for the issue to occur.

If you are really concerned, drill undersized and ream to proper size so that you get a perfect hole. Then put your trigger group in and leave it in.

My anodizing method is type 2, keeping the solution between 65-75 deg F. In this weather it's kind of difficult to keep the temperature correct. Type 3 would be pretty hard, you would need to really manage your bath closely and play with amps.

From last weekend (and my solution is getting old and little dirty):
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Old August 10th, 2018, 08:14 AM #32
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Quote:
Originally Posted by My Toy View Post
So for the thousands of unmarked pre-anodized 80% lowers out there that have been completed and probably can't be sent out to be re-anodized what would the best course of action to increase the longevity of bare aluminum trigger and hammer pin holes?
I would say Birchwood Casey Aluminum Black and make sure you grease the ends of the pins and the holes.
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