I have been looking at this gun for cqb but it does 430FPS and I need to lower it to around 300, I am on a budget. The people at buyairsoft say to use the SAT variable velocity adjuster, but I heard a M90 spring will work too, which one would work better?
SAT:
https://www.buyairsoft.ca/sat-variab...ty-device.html
Gun:
https://www.buyairsoft.ca/gandg-umg-max.html
Spring:
https://www.buyairsoft.ca/lonex-tune-up-spring-m90.html