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Old 07-11-2019, 07:19 PM   #1
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AA hop up chamber jamming problem, bb stoppers?

I just finishing my first upgrade on a JG bar-10.
I installed a Action Army hop up, a ML bucking and a AA 6.01 inner barrel. Had a few minor problems that I worked out. Shots great now but it keeps jamming every few minutes. I take the magazine out to unjam and two or three bb's fall out.

Searched the forum and the problem may be the bb stoppers. One person fixed the problem by turning them tighter.
How do you do this? A screw or nut in the hop up chamber?

Thanks for any advice.
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Old 07-11-2019, 07:26 PM   #2
Sodium   Sodium is offline
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There are two large flat head screws on the upper side of the unit. You should try tightening those a bit (one or two turns). Maybe more or less if necessary.
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Old 07-11-2019, 07:38 PM   #3
Pew pew   Pew pew is offline
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I also had this problem a while ago with one of my aa units. The actual bb stoppers inside the hop unit were chipped and would cause it to jam. The turning the tension screws do not do it, take a look at those.

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Old 07-11-2019, 07:39 PM   #4
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Quote:
Originally Posted by Sodium View Post
There are two large flat head screws on the upper side of the unit. You should try tightening those a bit (one or two turns). Maybe more or less if necessary.
Thanks, hopefully that is the problem. I went through some threads and one person also had a similar problem and found their nub was missing.

Not my problem, I spent a lot of time on the nub, but got me wondering if the nub is not perfectly centered.....

Just wondering...Do most people adjust the stoppers when installing the AA hop into their VSR-10? If not, why would it happen on some VSR-10's, but not others? 6.01 tight inner barrel have anything to do with stoppers needing adjustment?
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Old 07-11-2019, 07:41 PM   #5
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Quote:
Originally Posted by Pew pew View Post
I also had this problem a while ago with one of my aa units. The actual bb stoppers inside the hop unit were chipped and would cause it to jam. The turning the tension screws do not do it, take a look at those.

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Thanks for the tip, but brand new hop up, why would it be chipped?
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Old 07-11-2019, 07:47 PM   #6
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Who knows I had one a while ago for an older gun that was chipped, I shot maybe 50 shots and it was chipped

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Old 07-11-2019, 08:09 PM   #7
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Just throwing out ideas for you

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Old 07-13-2019, 03:09 PM   #8
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Tightining the BB stoppers seemed to work no more jamming but when I remove the magazine there seems to be one loose bb that falls out?

Note: I just gave the two screws on the chamber one turn and they were snug. I am guessing that whenever you install a AA hop up chamber you should turn them snug.
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