Fx impact m3 leaking air out of breach

A puff of air in your face with each shot? Yes, that’s from the valve stem that you see flushed out to the block when you look at the mag slot. Requires a tiny 2 x 1mm o ring. Time for a full disassembly

air-hunter_canyon said:

Good day,

So my impact m3 is leaking air out of the back of the pin probe where the pellet would be inserted. Im assuming it’s the o rings in the power block. Can anyone confirm or deny?

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It only leaks from the back side of the valve pin when firing, otherwise the leak would go down the barrel if it was the 16x2mm O-ring in the power block. Does the leak get louder when you pull the pellet probe back or do you get a puff of air in the magwell when you shoot?

@madeintheuk maybe can chime in seems pretty impact knowledgeable

Seems like it would be the valve or valve seat to me but hopefully more knowledgeable people will come.

air-hunter_canyon said:

I only get air when I draw back the pin probe. It leaks from the pellet hole

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Replace the valve pin 20275, you can contact [email protected] and get a replacement if you are stateside.

Also, if you don't feel comfortable making the repair, they will RMA the gun in and fix it under warranty. depending on how old it is, it may have the older Delrin poppet on the valve pin, they made it larger for a bigger sealing surface when the power block came out. It happens.

Most probably valve sealing issue