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VM Empire Where the VM-68's and PMI-3 Come out to play

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Old 07-10-2013, 01:18 AM   #1 (permalink)
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Pro Comp v3 Troubleshooting

Iíve got a VM-68 Pro Comp v3 that Iím trying to get running. As far as I can tell, the gun is cycling properly. However, after each shot, the bolt is not retracting far enough for a paintball to enter the breech.

On my stock VMs, the bolt face is completely flush with the rear of the breech chamber. On the Pro Comp, the bolt protrudes between about 1/8Ē and 1/16Ē into the breech.

The kit was originally installed by Airgun Dynamics, so Iím fairly sure that everything is set up properly. Iím running both the VMís main valve and the Pro-Compís bolt valve wide open. Any ideas?

Also, does anyone have a copy of the Pro Comp v3 manual?
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Old 07-10-2013, 05:51 PM   #2 (permalink)
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I don't think I have the manual, but I do remember trimming my fathers pro-comp bolt. It protruded into the breech as well. I think they did this to try to combat the long cycle of the VM.

I'll see if I can dig up the manual, but I think you are looking at a properly set up V3.
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Old 07-10-2013, 06:00 PM   #3 (permalink)
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Cool. Thanks for the help, Cap.

If that's the case, I've just got to figure out how to get the balls to feed into the breech during the cycle...

Last edited by Giuseppe; 07-10-2013 at 06:49 PM.
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Old 07-30-2013, 05:53 AM   #4 (permalink)
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That doesn't seem right. I just checked, and in my Pro-Comp, the bolt clears the breech when the gun is cocked. Are you sure the kit is properly assembled?
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Old 07-30-2013, 07:39 AM   #5 (permalink)
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Sadly, I seem to have lost my original Pro-Comp manual, else I would have scanned it. But I found an electronic version that I had saved on my hard drive, so I compiled it into a PDF:
https://dl.dropboxusercontent.com/u/...3%20Manual.pdf

Hope it works for you!
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Old 09-19-2013, 08:59 AM   #6 (permalink)
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Just saw that you posted this. Thanks, Mugged!
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