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Andrew the airsofter

Marui HiCapa 5.1 magazine problem???

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Is it alright if the fill valve o-ring is missing? Can anyone fill up the magazine without the gas escaping?? If you have the same problem please reply. (TM MaruiHiCapa magazine).

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I think what's being drived at by Dave: If it's the external one then most TM GBBs aren't designed with a 'silent fill' o-ring, and that's why they spurt gas everywhere. I believe this isn't a fully rectifiable problem in all of their guns as adding your own o-ring on some brings with it some fulling issues (i.e. it not depressing the valve enough to fill the magazine fully). Not sure if that group includes the Hi-Capas though, so you may be able to add your own if it's annoying you.

 

If it's the internal o-ring from the valve (i.e. the one you obtain threw unscrewing the brass from the aluminium tube) then yes, you very much need that like Monty says.

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I lost an o ring from one of my fill valves, I even found it in my dump pouch and threw it away before I realised where it came from. Mag still fills and holds gas, it's just a bit louder when I'm filling it

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Yes, but that's WE (who put silent fill valves in all their pistol mags) going from your profile on the left. Probably not the case with the Hi-Capa that there was ever one in there (TM haven't been putting in silent fill valves until very recently).

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Yeh. I've noticed their new M4 and M870s have them OEM now. Like I said, some people were documenting issues with the aftermarket ones because it wasn't depressing the valve enough - not on all brands though. Can also cut some some silicone tubing as it compresses better than an o-ring. I did that and it worked quite well on the Glock magazines.

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