K43 gas cylinder touches/ rubs on barrel

Are you able to compare the diameter of the original cylinder with the repro you’re trying to fit?
 
That's not right, it shouldn't rub. I would expect some function issues but I'd be more concerned with it rubbing the finish of the barrel in that spot.

I'll snap a picture of the clearance on my Apfeltor later on today.
 
That's not right, it shouldn't rub. I would expect some function issues but I'd be more concerned with it rubbing the finish of the barrel in that spot.

I'll snap a picture of the clearance on my Apfeltor later on today.

Should I contact the place where I bought it? I didn’t think it would be that close to the barrel or slightly rub.
 
YES! If it rubs it’s too thick of material. Do you have an original to check the thickness with?
Looks like the issue is with the actual piston they sent me. The one from the shooters kit slightly bends when it’s fully screwed in… the original piston goes in perfectly straight. Guess I’ll have to ask for a new piston.
 
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