G&G RK-47 Real Wood

[Boomshakah]

My friend got a AK-47 from G&G, worked fine for 2 months, but today, the gun is firing and the BB's go straight down due to lack of power. We don't know whats happening , but the gun make a wierd noise. We tried pretty much everything we can do without dissasembling the gun, like trying other brand of mags, or putting bb's 1 by 1. and firing on semi (BB's used were Madbull Precision 5.95) we also tried different kind of battery's. we cleaned the barrell, but nothing to do, everytime it seems that fps had dropped to 150... What could it be?? please thanks for the help in advance

[lemegacool]

disconnected nozzle from tappet plate, broken or worn tappet plate, torn hop up rubber... what kind of wierd noise?


edit: also dont post a doc question in a review thread...

[Boomshakah]

I'm sorry, i thought i'd post it at the review thread too since last time i posted something here nobody answered and i needed the fastest answer possible.