G&G Dual Sector Gear w/ Piston Body Kit

Excelente finishing, easy to install, 100% compatible with my G&G CM 16 Raider, low cost, but maybe it is not ready to use. I used this kit with ETU and Mosfet (from G&G) and to get a better result I cut the last few teeth to avoid problems. My friend who made this modification with me had problems when he left all the teeth of the piston, so he removed the last 5 or 6 teeth (I do not remember) to prevent him from locking the system again. That way it worked perfectly and we had no more problems. I used this kit (ETU+Mosfet+Piston+DSC) with a m130 spring in a stock G&G CM16 Raider and the result was: -> 354 fps (0.20 bbs) -> 34,42 ROF I think this is an excelente result for the price!