On/Off valve problem??

[ladyzzman01]

Hello all,
I need some help with my mag, recently i have been having a problem with my mag, actually its not a problem cause it doesn't affect my shooting at all but it bothers the heck out of me!!!! I am a little new to AGD products but i am not an idiot and i do Know my gun very well. it happens when i pull the trigger really slow, like try to squeeze really slow, and i get a pssssss and then if you pull it it shoots, like psssssss pop, psssssst pop, im exagerating the lenth of the psss, its short when your shooting but if you want you can find the pssss point and hold the trigger there and it will just keep on leakin. then when you stick your finger down the inside and press in the bold it stops. I would apreciate your expertice on this so i can make the pssss voices stop in my head. thank you.

[athomas]

Sounds like you need a slightly shorter power tube spacer.

The problem you are experiencing, is caused by the bolt moving slightly forward against the sear as you partially pull the trigger. The bolt stem is moving off the oring just ever so slightly causing a leak out the front. By putting a shorter power tube spacer in, you will maintain the seal at the base of the bolt stem for longer, and prevent the gas from escaping.

[FrAuStY]

I second Athomas... definite powertube spacer. This is actually a problem if you think about whats happening. When you slightly pull the trigger you allow part of the pressure in the chamber to be released. This will cause cold shots (Lower than your avg velocity) because it has less pressure and air available to shoot the paint. Most powertube spacer kits are around 15$. This is a good thing to have in case your change your bolt or gripframe. The on/off would leak if the trigger were at rest or completely pulled. Peace.