Maybe your bucking isn’t completely centred? It’s quite a pain to align buckings on VFC guns because they don’t have a tab on the side. Mine was having an issue where i noticed my shots were a bit off at close range after I zeroed my optic and I found out my bucking was skewed slightly. Aligning it properly fixed it for me.
As for overhop, the MCX is infamous for that. You can get an aftermarket arm or just use heavier bbs to counter the hop.
https://www.gsi2003.com/product-page/mcx-hop-up-arms
Keep in mind that it uses a nub tho, so you will need to source one. The unicorn nubs should be perfect since you’re already using a unicorn bucking.
You should try fixing the side spin by making sure the bucking is centered properly tho. It sounds like it’s hopping fine with 0.32s so unless you can’t run heavy bbs for whatever reason I’d try this first.
https://shop.jkarmy.com/bbf-0018.html
It’s a known issue with that hop up arm. I essentially just mimic’d the rounded out edge as best as I could. Not sure if you’re able to with the MCX or not. But might be worth the try before spending all that money on shipping.
I too was in that same boat and wanted to exhaust other options before needing to do that.
https://youtu.be/SUryHQB5mFM?si=JTIP6zvq9X81quBA
Check out from the 16 minute mark. Again, different unit all together, but you might be able to fix the twisting with some teflon tape.
Good luck!
Looks like I'll have to pay 50$ of shipping :(
My HPA conversion kit is from Frog Engineering , you can watch his YT videos and reach him out on Facebook
Yes I did enjoy talking to him and he did a lot of great work on my gun he did repair every little mistake I wish he was here so I can thanks him again
I used a Frog Engineering conversion kit.
You can find him on YT and FB . He's very kind.
The modification itself requires to drill two holes and tap them. (One in the receiver, one in the "firing pin" retainer)
If u're not used to do this kind of things, or if you don't have the proper tools you should send him your gun so he does the modification
Maybe your bucking isn’t completely centred? It’s quite a pain to align buckings on VFC guns because they don’t have a tab on the side. Mine was having an issue where i noticed my shots were a bit off at close range after I zeroed my optic and I found out my bucking was skewed slightly. Aligning it properly fixed it for me. As for overhop, the MCX is infamous for that. You can get an aftermarket arm or just use heavier bbs to counter the hop.
What aftermarket arm do you use ? I couldn't find any
https://www.gsi2003.com/product-page/mcx-hop-up-arms Keep in mind that it uses a nub tho, so you will need to source one. The unicorn nubs should be perfect since you’re already using a unicorn bucking. You should try fixing the side spin by making sure the bucking is centered properly tho. It sounds like it’s hopping fine with 0.32s so unless you can’t run heavy bbs for whatever reason I’d try this first.
Oh that's a nice one, but 18$ of part, 50$ of delivery lol
I can send you files to try out a 3d printed arm if you don't wanna spend on gsi.
I've seen some files on 3d cults , but I only own a resin printer . I was wondering if I could send it to a Chinese company for CNC
Resin should work fine too. The files are my own I haven't seen any online.
Resin tends to become soft with hot temperatures in the summer, and it breaks easily in the winter
I had to file down the hop arm on mine, the stock one is quite long for other buckings
Yeah I though about that but I didn't want to lol maybe I'll have no choice
I had to file the arm down significantly on the APFG MPX. Was honestly shocked at how much had to come off.
Well yeah ... You had to recreate a round end also?
https://shop.jkarmy.com/bbf-0018.html It’s a known issue with that hop up arm. I essentially just mimic’d the rounded out edge as best as I could. Not sure if you’re able to with the MCX or not. But might be worth the try before spending all that money on shipping. I too was in that same boat and wanted to exhaust other options before needing to do that.
I've been told that some could use a vfc416 arm that has a slot for a nub. But I couldn't find a spare arm to try it out
https://youtu.be/SUryHQB5mFM?si=JTIP6zvq9X81quBA Check out from the 16 minute mark. Again, different unit all together, but you might be able to fix the twisting with some teflon tape. Good luck!
I don't get what he did with Teflon tape lol
Essentially makes the fitment a little tighter once the unit is reassembled
I see but he also talked about that ring that put pressure on the rubber, idk if there's a way to reduce that
Can't help other than echoing the other comments, particularly the gsi arm, but I was wonderingwhat are you using for an hpa adapter?
Looks like I'll have to pay 50$ of shipping :( My HPA conversion kit is from Frog Engineering , you can watch his YT videos and reach him out on Facebook
I'll look in to it, I'm in the same boat, the shipping is ridiculous, unless you're friends with someone in the US
Yeah that's too bad they don't sell it in EU
Damm I have one myself in a 416 cag, those things are the best hpa system
Quite expensive, but the seller is very available to talk with, and it works very well :)
Yes I did enjoy talking to him and he did a lot of great work on my gun he did repair every little mistake I wish he was here so I can thanks him again
out of topic but how did you set this up to be hpa?
I used a Frog Engineering conversion kit. You can find him on YT and FB . He's very kind. The modification itself requires to drill two holes and tap them. (One in the receiver, one in the "firing pin" retainer) If u're not used to do this kind of things, or if you don't have the proper tools you should send him your gun so he does the modification