leak leak regulator in E-mag

[coach10ef]

i have just receive a new regulator piston bu AGD. i change for the old and the gun leak by rear.

if i push the trigger i din't have leak.

all O-ring are news.

if i put velocity in minimum i leak to.

i need help

[wanna-b-ballin']

you may want to try oiling all of the o-rings if you havent already.
also, try turning the velocity down. if the velocity is too high it can leak out the back sometimes.