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VFC g19x bucking/tensionner upgrade?


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Old May 23rd, 2020, 02:35   #1
Join Date: May 2020
Location: Quebec, Canada
Question VFC g19x bucking/tensionner upgrade?

Hi all,

I am looking for a bucking or tensionner upgrade on my Umarex VFC g19x. currently the stock bucking will not hold BBs, i did put a maple bucking in but its the same issue, BBs still fall but with a slight shake now.

Cranking the hop up a bit fixes the issue but id prefer not always having tension on the said bucking all the time. For the moment i placed a small plastic piece of like 1mm under the tensionner to fix the issue. The plastic could fall appart at anytime.

Are there upgrades that would be a permanent fix to that issue?

Thanks in advance.
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Old May 27th, 2020, 13:01   #2
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Join Date: Jul 2003
Location: Vancouver
VFC/Umarex Hop up issues

What tends to happen is the factory hop bar heavily indents the hop rubber depending on it's degree, reducing the amount of sustainable pressure across the top of the hop rubber.

The easiest solution would be to use a maple leaf hop rubber and the "I' key with factory bar. It will provide a solid downward pressure.

A small piece of thicker gas-fitter tape across the top, not wrapped, will also reduce how far the pressure fingers penetrate into the bucking dents, essentially shimming it in a way that still applies the same downward pressure to the same two spots and doesn't deform the rubber. Don't over do it.

You can also try picking up ONLY the "I" key and trying it with the stock rubber as a test platform before buying another bucking.

Set it, shoot it and let us all know how it works for you.
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Old June 1st, 2020, 10:48   #3
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Join Date: Nov 2008
Location: Toronto
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I switched the the Maple leaf decepticon bucking 60 degree bucking. It's doing a lot better on .20's but gas guns like heavier bb's like .25/.28+

Looks like Poseidon released a new hop unit for the VFC Glocks, should do the magic.
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