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December 28th, 2006, 11:44 | #1 |
MP5 Hopup issue
I'm at a loss here so perhaps some of you guys may know how I can fix this issue. Anyway starting from the beginning, my friend's TM MP5 has been having a feeding issue where full TM low cap mags would jam up. If ~5 rounds are removed from the mag the gun feeds just fine but guessing how much ammo has been loaded in between games can be difficult.
Anyway after much frustration, I've isolated the issue down to the MP5 hopup rubber. I properly put the hopup onto the inner barrel and while inserting the two into the MP5 hopup mech, the rubber seems to deform. So much so that the lips that make contact with the nozzle get in the way with the BB. As shown in a picture attached you can see that BB has actually pushed a bit of the hopup lip into the barrel and the air from the mechbox does not have enough power to push the BB through. My question is, how the heck am I suppose to put the TM hopup mechanism back together without running into this hopup lip problem? Unfortunately I only have Guarder black rubber hopup sleeves to work with, if you think that Guarder is at fault, I can steal a stock TM hopup from one of my other guns. Any ideas? |
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December 28th, 2006, 11:56 | #2 |
Apprently, this is a common problem with TM MP5s. I had/have the same problem with my MP5J. I tried everything to fix it, but in the end I just replaced all my lowcaps with midcaps.
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December 28th, 2006, 12:16 | #3 |
What brand midcap mags are you using? I'd hate for that to be the solution and I'll keep tweaking! Haha if I do figure out a fix, I will post it here.
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December 28th, 2006, 14:44 | #4 |
I lube the outside of the rubber and the inside of the hop-up chamber then slide the inner barrel ,with rubber, on it into the chamber. It helps keep the bunching down.
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age verifier for Prince George, Mackenzie, Quesnel, Fort st James and northren BC http://pgairsoft.goodforum.net/index.forum |
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December 28th, 2006, 18:12 | #5 |
I use the G&P midcaps. Pretty reliable IMO, fewer jamming issues than the TM lowcaps.
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December 28th, 2006, 19:53 | #6 |
Official ASC Bladesmith
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TM Locaps for the MP5 misfeed rather easily if loaded full and first shots attempted were in semi auto. VERY common problem, easily fixed by going to midcaps, under loading the mags by 5-10 rounds, or firing a burst first from a fully loaded locap then going to semi.
Besides, semi-auto is for posers. Real players can fire a single shot from full auto setting anyways. |
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