Lollingsgrad Posted January 19, 2018 Share Posted January 19, 2018 I bought a cheap CYMA P90 to try my hand at teching without fear of destroying a several hundred pound AEG. I was going to start with a flat hop since it looks easy but I've heard that the hop chamber on the CYMA is kinda garbage. Does anyone have experience with the CNC'd chamber that appears under a bunch of brands shipping from Hong Kong? https://m.ebay.co.uk/itm/ProWin-CNC-Hop-Up-Chamber-for-Marui-90-G-P-AEG/141977906867?epid=812060932&hash=item210e8aeeb3:g:xagAAOSw3mpXJczP I was also considering going tight bore so I can go down to a lighter spring and allow it to shoot at a higher rate without going to a massive battery that'll fry the reportedly dodgy trigger contacts. Does this make sense or am I confused? First time teching so I could be talking nonsense. Link to comment Share on other sites More sharing options...
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