MinM

Got your solution. fixt it. Between barrel spring and hopup you got a round clip. Dont use the white SI provided you, use the black from MTW(stock). You need to put that clipp all the way in in the hopup(as far as you can put it in with manpower), its a rly tight fit. This fixed my feeding issue, all gone with all the above hop up units.

Hi, Got the same issue with the MTW MK18 Installed the SI alpha, black nub and purple advanced wheel + SI Red nozzel V2. PTS EMS1 250rds mag(brand new) shoots fist 100 bb with a lot of no feeds, then it shoots without any issue. Most of the people I spoke about this issue, say its because of the GEN3 MTW CNC feed tube not compatible with after market parts. So installed MTW phoenix, same issue. Reinstalled the stock nozzle with SI Hop up = same issue Reinstalled stock nozzle with Phoenix = same issue Installed the poly hop up MTW = issue fixed Did send a mail to Wolverine, asking if the MTW advanced feedtube is compatible with the MK18. No aswer yet. Asked SI to help with this issue. @2RIR did you fix the issue?