KSC 1911 hopup?
 

Hey guys, I'm trying to get a new hopup rubber for my m1911, But I cant seem to find any rubbers specifically made for the pistol. Apparently it uses a 'glock' or 'usp' hopup from other KSC guns, but I cant seem to identify which even after a google search.
Does anyone have any idea what I should be looking for here?
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GLASS PIPES