RT instant rapid fire

[Wilson!]

I recently purchased an RT pro valve to upgrade my mag. When I installed the RT and turned on the HPA the gun instantly began to rapid fire without me pulling the trigger. I tried shortening the trigger rod but I got rapid fire again... any ideas?

[xero28]

Check the On/Off o-rings and make sure the on/off pin is the correct length.

[Spider-TW]

Which on/off does it have?

Make sure the field strip screw is at least snug.

[Wilson!]

It looks like an RT on/off, all the o-rings are good. The on/off pin may be too short, I don't have anything to accurately measure it. On the skinny end it seems to have been ground down or broken off, it isn't smooth on the end.

[Spider-TW]

Good ruler?

The stock pin should be right at .750 (3/4").

A short pin will be more than 1/32" shorter.

Anyone know if you can drop a quad o-ring into an RT Pro on/off cavity?

[Wilson!]

This pin measures just under 1/2 inch, it must be my issue.

[Spider-TW]

This pin measures just under 1/2 inch, it must be my issue.
:wow: That's pretty much like not having a pin...

[Wilson!]

Thanks for the info!

[maniacmechanic]

This pin measures just under 1/2 inch, it must be my issue.

evidently sir , you have a broken pin :(