First of all I would like to thank everybody here for sharing their knowledge - great site and resource.
Now for my problem...
I was about ten seconds from pushing the retaining pin for the gas piston out of my Polish bolt carrier (to replace with US piston) when I noticed two tiny hairline cracks traveling from each end of the pin to the end of the piston opening. I have no clue if I did this or it came this way from SG, the cracks are real hard to see.
I had an AK "expert" look at it and he told me to furrow the cracks and TIG weld them back together. The guys at the welding shop seemed to think it was no big deal though they said they would probably have to re-tap the carrier because when they perform the welding the threads will get damaged.
The fee for doing this is around $75.00 providing the thread pitch can be matched from their shop.
Option 2 would be spend the same amount of money on a new bolt carrier and replace the damn hand grip.
Would mixing a new bolt carrier with my used piston and trunnion effect fit, function etc? I could live with the numbers not matching providing it ran right. Anybody have any insight into this?
Thanks,