installing gas piston on Mak 90

beantole

February 11, 2002 08:30

I ordered a USA made new gas piston for my Chinese Mak 90. I looked at my present gas piston and there is no pin at all holding in the piston, looks like I just unscrew the old one and screw in the new USA made gas piston. Has anyone done this here? Any problems I should be aware of in taking off and installing the new gas piston? Thanks.

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  Hans Grueber

  February 14, 2002 20:00

  As long as the threads match and it doesn't inhibit the action, it should be fine.

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  nydeerhntr

  February 17, 2002 23:06

  I had the same problem with my chinese mak-90there IS a pin keeping the piston from UNSCREWING the only thing is that they grinded the pin smooth with the bolt carierfor some reason,you could forget about tryingto knock it out i tried every thing short of a plasma cutter, my advice to you is to notmess with it and sell the whole carier and buy an eastern block one they have real pins that could be taken out! or just leave it alone and add your U.S. parts elswhere in the rifle. any way good luck.

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