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I had this problem with my hop up. I've been experimenting with extremely long hop up contact patches. My problem was traditional hop up systems applied pressure to the patches at an angle. This made for improper hop, or, rather, not fully used hop. It was almost impossible to apply flat, even pressure along the full length of the contact patch.
So I had an idea. If I could put a screw, or something similar through the top of the gun into my hop up chamber, I could give the hop up a more even contact surface. Simply by pushing the furthest part of the hop up down would help out; the rest of the chamber could hold the nub in place, and keep it centered well enough.
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These are my hop ups, the top is a Prometheus chamber, the barrel is vanaras 6.03 509mm, the bucking is a Prometheus Hard, the nub is an M-nub backed with metal, and the hop up is an XR-hop.
The second hop up chamber is a Madbull Ulitmate with a Prometheus 6.03 550mm, Madbull Red, sorbo nub backed with thin plastic, and the contact patch is a long flat hop contact patch.
The solution was simpler in my mind that it actually was to make.
I started by drilling a hole through the top of my gun, straight down, over the hop up unit. The first hole was too close, and the second one was right on spot. You can see the Prometheus's pink arm through the holes, to get an idea of where the screw is centered over the hop up unit.
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Once the hole was made, I JB welded a nub to the underside of the gun:
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The screw I used I modified to be easier to turn with gloves from outside the gun. I removed the head of the screw and added a dial I found at Ace. It turned out to be perfect for this application.
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These last few pictures show how it all comes together, and about how it all fits together. All in all, I'm quite pleased with how this came out. It was fairly simple to implement, and is remarkably effective for the longer contact patches.
It was really interesting to see it start to take effect. Because of the way I have the hop ups set up, I set it normally at first. Then, once I get the correct amount of hop, I start to apply hop with the screw until I notice the bbs starting to hop more. What's really interesting is, as I start to screw the screw in further, the range of the bbs begins to increase. I don't know what spring I had in my gun, nor do I know what it was chronoing at at that matter. Using Matrix .28s I was getting about 200-250ft of range during the initial hop up setting. Once I set the secondary part of the hop up, I was getting 300-350ft of range. I was very impressed, and it was really interesting to watch the range slowly stretch further and further, without adding any extra hop, as I screwed that screw in.
As for the name, I was discussing this with a sniper friend of mine, and it turns out Noobie did something like this a while back. So, the name is his, considering it's the exact same thing he did, just, this is in an aeg, and not a vsr-10. But, regardless, I figured I would share the mod, and show how I did it to my L85.
So I had an idea. If I could put a screw, or something similar through the top of the gun into my hop up chamber, I could give the hop up a more even contact surface. Simply by pushing the furthest part of the hop up down would help out; the rest of the chamber could hold the nub in place, and keep it centered well enough.
These are my hop ups, the top is a Prometheus chamber, the barrel is vanaras 6.03 509mm, the bucking is a Prometheus Hard, the nub is an M-nub backed with metal, and the hop up is an XR-hop.
The second hop up chamber is a Madbull Ulitmate with a Prometheus 6.03 550mm, Madbull Red, sorbo nub backed with thin plastic, and the contact patch is a long flat hop contact patch.
The solution was simpler in my mind that it actually was to make.
I started by drilling a hole through the top of my gun, straight down, over the hop up unit. The first hole was too close, and the second one was right on spot. You can see the Prometheus's pink arm through the holes, to get an idea of where the screw is centered over the hop up unit.
Once the hole was made, I JB welded a nub to the underside of the gun:
The screw I used I modified to be easier to turn with gloves from outside the gun. I removed the head of the screw and added a dial I found at Ace. It turned out to be perfect for this application.
These last few pictures show how it all comes together, and about how it all fits together. All in all, I'm quite pleased with how this came out. It was fairly simple to implement, and is remarkably effective for the longer contact patches.
It was really interesting to see it start to take effect. Because of the way I have the hop ups set up, I set it normally at first. Then, once I get the correct amount of hop, I start to apply hop with the screw until I notice the bbs starting to hop more. What's really interesting is, as I start to screw the screw in further, the range of the bbs begins to increase. I don't know what spring I had in my gun, nor do I know what it was chronoing at at that matter. Using Matrix .28s I was getting about 200-250ft of range during the initial hop up setting. Once I set the secondary part of the hop up, I was getting 300-350ft of range. I was very impressed, and it was really interesting to watch the range slowly stretch further and further, without adding any extra hop, as I screwed that screw in.
As for the name, I was discussing this with a sniper friend of mine, and it turns out Noobie did something like this a while back. So, the name is his, considering it's the exact same thing he did, just, this is in an aeg, and not a vsr-10. But, regardless, I figured I would share the mod, and show how I did it to my L85.
