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Cnc work?

2300 Views 9 Replies 6 Participants Last post by  Skip
Hey all,
After installing a AC precision hopup chamber into my jg Gspec, I am finding the fit and tolerances much improved over the stock unit. I went with the AC unit because I still wanted access to the quick adjust lever, but I will now have to fight the shot hooking that vsr's are known for. One of the disappointing things about the AC chamber is that it did not come with aluminum arms/the rest of the hardware that is contained in the hopup assembly, which I think would have made the whole package function much better. My questions:

1. Does anyone make a steel version of the slider arms that link the external adjuster arm with the hopup arm?

2. What kind of fabrication Process would be needed to make them (although I am a fairly capable craftsman when it comes to woodworking, metalwork is still largely a mystery if I cant do it with a file)

3. What would it cost to have something like that fabricated?

4. What type of metal would be best for the purpose.

My reasoning being that with a metal armature, I could lose most of the flex of the plastic parts, and gain a longer, stiffer tab that would extend through the hopup arm slot, thereby reducing lateral flex. I plan to mate this assembly with a Dangerwerx A type hop arm (rifle has to shoot sub 450fps) in the end.

Thanks for the help all!
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The type of arm has no relation to fps rather what type of bucking you are using. If you have a bucking with a nub style of \/ \/ (as in a Firefly, or a MGunner said the PDI W-hold) then get the flat nub arm(type B), however if your nub is more like the stock configuration, or a Nineball, like this ')' (picture that turned 90* to the right) arm, use the type A.

In regards to the TDC mod, you could remove the head of the screw sticking up if you used a grub screw instead*(credit to CheeseMan for the idea) and then either leave it dialed in with the bb weight of your choice, or drill a small hole just large enough for an allen key in the RIS to be able to adjust the hop.
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