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Madbull hop up rubber

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Old October 21st, 2011, 17:56   #1
Mobius
 
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Madbull hop up rubber

Hi, i ordered 2 madbull 60 degres rubbers, from airsoftparts.
I bought them to upgrade my SRC G36k, but once i installed it, i tried it, and look like the rubber is too big.

Where there is a hole in the barrel, where the rubber touch the BB giving his back spin, it goes in too much.
When i fire my gun at lowest hop up setting, it shoots like its at the maximum of the hop up, and when i put it to the mximum setting it jam...
I noticed the little tube that push down rubber in the barrel is way bigger the original in my hop up.

Then i tried it on my CA P90, i tought this is happening beacause the rubber does not fit with the G36, but same thing, this rubber is too big for my guns.

When i replace back the old rubber, everything is normal. I though these rubbers were ``universal``

Does anyone knows why ?

Thanks
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Old October 21st, 2011, 18:09   #2
coach
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Use your original nub (what you call tube) with the new rubber.
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Old October 21st, 2011, 18:53   #3
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Quote:
Originally Posted by coachster View Post
Use your original nub (what you call tube) with the new rubber.

i tried it, same result
for the P90 and G36
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Old October 23rd, 2011, 00:59   #4
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Quote:
Originally Posted by Mobius View Post
i tried it, same result
for the P90 and G36
Use heavier bb's?
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Old October 23rd, 2011, 04:53   #5
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Quote:
Originally Posted by krap101 View Post
Use heavier bb's?
so you saying he should use heavier more expensive BBs instead of replacing a shit hopup bucking?.. yea that makes perfect sense.

i have used the madbull buckings before, they are indeed shit. as well as their aluminum tight bores. they have a shit coating that peels after a while and causes really bad BB jams(cheaped out on the barrel and it cost me a new piston and nozzle).

been using nothing but Prometheus hopup buckings with their barrels, absolutely love them. they cost more than madbull, but are far better.
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Old October 23rd, 2011, 12:41   #6
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A cost effective rubber is the Guarder Clear but if you're willing to spend the few extra dollars then most people swear by Prommy (get the purple one) or Firefly also makes AEG rubbers but I can't confirm the quality, their VSR rubbers are beastly though.
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Old October 23rd, 2011, 13:35   #7
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I hatee my Madbull bucking but like their barrel. Just get a prommy bucking.
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Old October 23rd, 2011, 13:46   #8
cellulose
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I've only had problems with the red MadBull buckings, the blue one has worked great.

I'm also using the MadBull Ultimate hop-up chamber and MadBull Black Python V2 barrel and those all work awesome together in my N4.

I've installed the blue and red in TM P90s and had issues with the red but not the blue. If you got the red one that's most likely the problem, if you got the blue it must not be in right...
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Old October 23rd, 2011, 17:12   #9
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I like the Promy Red but i mod them.
I turn it inside out and remove the internal Nub.
the turn it right side out and install it in a metal hopup with a Shredder Nub.
outstanding, but if you Screw up the internal Nub removal.. you have scewed the hopup rubber..
it can get costly hahaha
SV
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