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12/8/2013 7:00:06 AM EDT
I have done several other yugos m85/m92 with no problems so I am kind of stumped here.

This is the second time I have worked this gun and in between efforts replaced to new park solution and new clean aluminum oxide blasting media. I Cleaned up everything well etc etc.

The problem I am having is the front sight/gas block and the rear top cover hinge block. They just will not take the park on neither the 1st or 2nd attempt. I used Palmetto solution the 1st time and Shooter solution the second. The rest of the gun looks great.

Any thoughts?

Thanks muchly
12/8/2013 8:45:12 AM EDT
[#1]
Had issues like this before. Some times just can't get a metal to take the parkerizing. I just end up painting, instant blue, or just leaving as is depending on what it looks like.
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