currently running a azodin kaos. only problem i had was the striker o-ring (part RO11) being a bit to soft so it wouldn't give a good seal. this caused my gun to either A. shoot and return to half cock. or B. shoot for a few rounds and then return to half cock. have to replace that o-ring with a black o-ring. other than that it works wonders, love this thing like there is no tomorrow and WAAYYYY lighter than my spyder compact A that i had about 10 years ago