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Can anyone tell me how to remove & replace the gas piston on my east german ak-47?How do you get the gas piston off of the bolt carrier?I know that on a full auto there is a pin in the end of the piston and it looks like I can see it ground down,but is it still there?Do I just turn the piston right or left?It dose not want to turn my hand and don't want to use a vice-grip on it a chew it up and then still not get it off.Please help need to replace old gas piston looks well use would like to but in a new one.(Tapco)
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Locate the pin end. Drive it out with either a punch or a nail with a hammer. Unscrew the piston. Thread the new one in until it bottoms out (by hand), then back it off a quarter turn (if I remember right). Drill through the hole in the BC through the new piston. I use a cut down nail as a new pin, then peen the ends flush with the BC. Paint the exposed pin and you're GTG.
 
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