leaking out the back problem

[Warpaint]

I just bought a mag and it leaks out the back.
As soon as I screw the hpa in it just starts leaking out the back ...alot like the air is just flowing right thru it ..and it kinda pulses.
it also leaks out the front .

Please help

[PyRo]

Try turning down your velocity by turning the big nut on the back of the valve counter clockwise. For the front leak, check the pt o-ring.

[Warpaint]

Your a stud thanks man!

[PyRo]

Does it work?