Are you talking about the Noveske KX3 flash suppressor?
http://noveskerifleworks.com/cgi-bin...since=&status=
If you are... and you think that it is causing the gun to short cycle... take it off and see if it solves the problem. I would be surprised if the addition of the KX3 would cause you rifle to short cycle. I suppose that it could. The KX3 could extend the dwell time a bit. What brand and length of barrel are you using? Also, do you know the gas port diameter?
320pf