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Charging handle mod question
Quick question guys, at what part does gas vent at the charging handle? Does it vent more on the top or bottom part? Reason why I ask is I'll be modding the charging handle a bit with a small channel to redirect the gas away. Looking at the wiki site the mod is on the bottom wheras on the real PRI gas buster handle the deeper channel is on top. Thanks in advance for the inputs guys.
P.S.
Any preventive measures on how to get rid of surface rust? It's quite humid here in the Philippines and some parts are already showing signs of surface rust.
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