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Marui hopup jam
I installed a Gaurder SP120 upgrade kit into my MP5. It's pretty much the first time I've had it running properly after putting the whole thing up together. Here's the problem. There seems to be some sort of plastic thingy inside the hopup tube. Is this normal. It's right after where the bb's are fed into the barrel from the magazine. If I poke it this flap moves out of the way, it seems really loose. If I try to fire, the bb just gets stuck and doesn't pass the flap. I used a screw driver and poked around till the flap went away. My gun then fired just fine. After about 30 shots, that stupid flap came back down and jammed the bb's again. Any idea what's going on? Is this flap supposed to be there or is there something broken inside my hopup. I'd rather just remove the flap if possible. Thanks,
Bryan
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