No not useless....u have any o rings? From like an rda? Or something? Just use those. I doubled up on 2 from my goons...worked just fine too. Notice some of the little arms broke on mine? I still have 1 more...havemt filed it yet. My raven came with 2yeah, I think I'll cut my self a little thin plastic washer between batter and that spring because that's no good! that spring is bad! or washer or whatever it's called I also only have one now. u should get like twenty or something. I don't even know where to get spares..... once their all broke the mod is useless!
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