Kwa m93r hop issue

[XxB4K3RxX]

Hey again guys, i have an issue with my m93r hop, i find it really hard to adjust my hop and to get BB's to go straight, when i adjust it nothing really seems to happen it may make a bit off a difference but not a great deal, and when i think i have got it, it jams alot which is really frigging ignoring me when playing anyone have an idea how to solve this problem.
thanks for taking the time to read.