ManLikeBigDave Posted March 15, 2019 Share Posted March 15, 2019 Recently I bought a Pro Win M4 hop up unit for my ARES Amoeba am-013 AEG, as well as a madbull 6.03 inner barrel. I tried to use a madbull shark accelerator bucking which did not fit the unit and ripped, i then tried the stock bucking with the same story.I moved on to use a prometheus purple bucking which actually fits inside the hop up unit, however the bb gets stuck in the bucking and will not shoot at all. I will pull the trigger a few times, pull the mag out and a few bb’s will fall out, but none will fire.Hopefully there is some sort of solution to this problem as I do not want to buy a new gun all over again. Edit: I should add that there is a little bit of play/ backwards and forwards movement, only by a few mm of the hop up unit when the upper and lower receiver are put back together and my pro win didn’t come with a spacer Link to comment Share on other sites More sharing options...
Mostly Retired Moderators L3wisD Posted March 15, 2019 Mostly Retired Moderators Share Posted March 15, 2019 18 minutes ago, ManLikeBigDave said: I do not want to buy a new gun all over again. That seems a little drastic... Have you tried the Madbull barrel in your Stock ARES Hop up unit? Or vice versa, tried your stock barrel in the Pro-win? Link to comment Share on other sites More sharing options...
Supporters Adolf Hamster Posted March 15, 2019 Supporters Share Posted March 15, 2019 have a look up the feeding tube, is the lips on the bucking poking into it? it's a common problem with maple leaf rubbers, although normally prommy purple aren't too bad. you can work around it if you have mags with really strong springs but the better solution is to find a rubber that doesn't do that. also check down the barrel with the hop turned on make sure it's not protruding so much as to block the bb from leaving. Link to comment Share on other sites More sharing options...
E21A Posted March 15, 2019 Share Posted March 15, 2019 Seconded what @Adolf Hamster said, check the lip of the busking isn’t poking into the feed tube. Had that with my maple leaf bucking sand just GENTLY sanded them down until it no longer protruded into the feed tube. Link to comment Share on other sites More sharing options...
ManLikeBigDave Posted March 15, 2019 Author Share Posted March 15, 2019 9 hours ago, L3wisD said: That seems a little drastic... Have you tried the Madbull barrel in your Stock ARES Hop up unit? Or vice versa, tried your stock barrel in the Pro-win? I’ve tried the madbull barrel in stock yes and the same problem, I believe i tried the stock barrel in the Pro-win and th same issue 9 hours ago, Adolf Hamster said: have a look up the feeding tube, is the lips on the bucking poking into it? it's a common problem with maple leaf rubbers, although normally prommy purple aren't too bad. you can work around it if you have mags with really strong springs but the better solution is to find a rubber that doesn't do that. also check down the barrel with the hop turned on make sure it's not protruding so much as to block the bb from leaving. It seems to be overlapping just by less than a mm, the problem is, is that a bb will get into the bucking, but wont shoot out of it, the bucking holds it into place, but wont fire. The air seal nozzle hits the bb but it won’t budge! 5 hours ago, E21A said: Seconded what @Adolf Hamster said, check the lip of the busking isn’t poking into the feed tube. Had that with my maple leaf bucking sand just GENTLY sanded them down until it no longer protruded into the feed tube. Do you think sanding it down will reduce the ability for it to get stuck? If not are there any buckings I can try?? Link to comment Share on other sites More sharing options...
Supporters Adolf Hamster Posted March 15, 2019 Supporters Share Posted March 15, 2019 1 hour ago, ManLikeBigDave said: It seems to be overlapping just by less than a mm, the problem is, is that a bb will get into the bucking, but wont shoot out of it, the bucking holds it into place, but wont fire. The air seal nozzle hits the bb but it won’t budge! it doesn't take much overlap to cause feeding issues. however if as you say the bb is making it's way into the chamber then next stop is to look at the nub, if it's too far into the barrel then that'll be what's blocking the bb. other option is possibly too much extreme on the other end and you have an air leak that's causing an otherwise ok hop setting to be enough to jam the bb. i'd try turning the hop all the way off, see if it protrudes too far, and check if the nozzle on the gearbox is sealing up against the back of the hop. Link to comment Share on other sites More sharing options...
ManLikeBigDave Posted March 15, 2019 Author Share Posted March 15, 2019 20 minutes ago, Adolf Hamster said: it doesn't take much overlap to cause feeding issues. however if as you say the bb is making it's way into the chamber then next stop is to look at the nub, if it's too far into the barrel then that'll be what's blocking the bb. other option is possibly too much extreme on the other end and you have an air leak that's causing an otherwise ok hop setting to be enough to jam the bb. i'd try turning the hop all the way off, see if it protrudes too far, and check if the nozzle on the gearbox is sealing up against the back of the hop. The nozzle does seal up as i had a look when i checked the chamber and dry fired to see if it came into the chamber and it does, but there is some wobble from the hop unit as per my edit. The nub i used came with the prommy bucking and doesnt really protude much into the barrel as i tried shooting hop on and off.... Link to comment Share on other sites More sharing options...
ManLikeBigDave Posted March 16, 2019 Author Share Posted March 16, 2019 27 minutes ago, ManLikeBigDave said: The nozzle does seal up as i had a look when i checked the chamber and dry fired to see if it came into the chamber and it does, but there is some wobble from the hop unit as per my edit. The nub i used came with the prommy bucking and doesnt really protude much into the barrel as i tried shooting hop on and off.... Just wondering if the bucking is too thick? Link to comment Share on other sites More sharing options...
Supporters Adolf Hamster Posted March 16, 2019 Supporters Share Posted March 16, 2019 hmm, could be an air leak then, you can try o-rings as a spacer to push it up against the gearbox, i run a spring in mine because by chance i happened to have one in my box o' stuff that was exactly the right size. Link to comment Share on other sites More sharing options...
ManLikeBigDave Posted March 16, 2019 Author Share Posted March 16, 2019 24 minutes ago, Adolf Hamster said: hmm, could be an air leak then, you can try o-rings as a spacer to push it up against the gearbox, i run a spring in mine because by chance i happened to have one in my box o' stuff that was exactly the right size. Still a bit new to this and I am only self taught, spacer over the barrel? Or around the nozzle? I don’t like the movement of the prowin around my magwell aswell i’m not sure if that is a contributing factor as you said air leak Link to comment Share on other sites More sharing options...
Supporters Adolf Hamster Posted March 16, 2019 Supporters Share Posted March 16, 2019 Spacer goes around the barrel to push the hop back against the gearbox, you might notice your stock hop has a little spring on the top that does the same job. Link to comment Share on other sites More sharing options...
ManLikeBigDave Posted March 16, 2019 Author Share Posted March 16, 2019 5 minutes ago, Adolf Hamster said: Spacer goes around the barrel to push the hop back against the gearbox, you might notice your stock hop has a little spring on the top that does the same job. Perfect! Thank you, i’ll try and find a pro win spacer, i tried the stock one but doesnt fit and the spring wont come off the stock unit Link to comment Share on other sites More sharing options...
Steveocee Posted March 17, 2019 Share Posted March 17, 2019 On 16/03/2019 at 01:34, ManLikeBigDave said: Perfect! Thank you, i’ll try and find a pro win spacer, i tried the stock one but doesnt fit and the spring wont come off the stock unit The spring in a biro clicky pen fits brilliantly. Just been through a similar shenanigan with my am-008. Ended up swapping to a ZCI plastic, same theories apply (the pro win would fire 3 then float one out). Mine was a combination of issues, maple bucking with long lips, i hadn’t fully seated the barrel, we're talking .x of a mm but it was enough to make a difference and then my frustration at stripping it and testing 8 times over. Also if you have slight feeding issues, pushing the hop back onto the gearbox harder will only make that worse. Now reliable shot to shot. Chronod at 300 with 0.25s and will get the hop set when next on field (FPS may increase a little as I think it will overhop as it is) Link to comment Share on other sites More sharing options...
ManLikeBigDave Posted March 17, 2019 Author Share Posted March 17, 2019 11 hours ago, Steveocee said: The spring in a biro clicky pen fits brilliantly. Just been through a similar shenanigan with my am-008. Ended up swapping to a ZCI plastic, same theories apply (the pro win would fire 3 then float one out). Mine was a combination of issues, maple bucking with long lips, i hadn’t fully seated the barrel, we're talking .x of a mm but it was enough to make a difference and then my frustration at stripping it and testing 8 times over. Also if you have slight feeding issues, pushing the hop back onto the gearbox harder will only make that worse. Now reliable shot to shot. Chronod at 300 with 0.25s and will get the hop set when next on field (FPS may increase a little as I think it will overhop as it is) So the switch to a ZCI made a good difference? I think I fixed it by using the stock spring on my hop unit and now it shoots well, just the hop up wheel is super stuff due to the rubber ring around the back of the unit. Just worried about the mag not sitting in the magwell like it used to!!! Link to comment Share on other sites More sharing options...
Steveocee Posted March 18, 2019 Share Posted March 18, 2019 10 hours ago, ManLikeBigDave said: So the switch to a ZCI made a good difference? I think I fixed it by using the stock spring on my hop unit and now it shoots well, just the hop up wheel is super stuff due to the rubber ring around the back of the unit. Just worried about the mag not sitting in the magwell like it used to!!! The zci has brought me back shot to shot consistency. It may be the pro win needed tinkering to get perfect. When I installed it I just threw it in expecting an easy swap. This time I've gone full on obsessive lol A touch of oil on the o ring that the adjuster sits on will fix the stiffness however once your hop is set of argue there isn't a lot of adjustment needed. Mag well will be fine, there is an amount of lenience in there. Link to comment Share on other sites More sharing options...
ManLikeBigDave Posted March 18, 2019 Author Share Posted March 18, 2019 3 hours ago, Steveocee said: The zci has brought me back shot to shot consistency. It may be the pro win needed tinkering to get perfect. When I installed it I just threw it in expecting an easy swap. This time I've gone full on obsessive lol A touch of oil on the o ring that the adjuster sits on will fix the stiffness however once your hop is set of argue there isn't a lot of adjustment needed. Mag well will be fine, there is an amount of lenience in there. Okay, i’ll run a few tests on the pro win, see how reliable it is, as it seems to be working well, means I can set the hop as well. Thank you for your help! Link to comment Share on other sites More sharing options...
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