T91 Gas Piston Cleaning Kit usages?

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Joined: Wed Jan 31, 2018 12:41 pm
Country: USA
Location: Oregon

I’ve got the set of 4 carbon scrapers and am wondering what the intended uses are. I’ve figured out that the largest scraper exactly fits the gas relief holes in the gas piston sleeve, and running that reamer through the holes did dislodge accumulating carbon.

I’m at a loss on where the other 3 scrapers are intended to clean. They don’t seem to naturally fit any of the other holes where carbon is building up.

Thanks for any help in clearing up my confusion.

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Posts: 447
Joined: Thu Apr 20, 2017 5:47 pm
Country: USA
Location: AZ

Here you go, if I receive more details I will update here.

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