KJW USP Mag Leak
 

Well, judging from the searching I've been doing on these forums, I am one of the many people with this problem. I am filling the mags with propane using an AI v4 propane adapter and using silicone oil occasionally in the fill valve as advised.

I purchased the gun from a friend, and he did inform me that 2/3 mags leak. I have 3 KJW USP Mags, 1 of them works great, 1 of them leaks from the flow valve, and 1 of them leaks from the flow and fill valves. These leaks are not small leaks either, they are quite serious and prevent the magazine from being filled.

I have taken out all the o-rings in the gas chamber and valves except the tiny one inside the valve, and soaked them in silicone oil overnight. I also soaked the tiny one in the valve in silicone oil while it was still in the valve, overnight. This seemed to help a very little bit, but it did not do anything substantial. The mags are still unusable.

So my question is, should I try to repair the mags (teflon tape, teflon sealant, new o-rings?) and if so, would canadian tire stock o-rings and/or teflon products? Or would I be better off purchasing new valves and hoping for the best, and if so, where would I buy the valves, as jungletoys.com no longer stocks them.

Thanks

There is a thread specific to the kjw usp/baretta mag leaks.

Hope it helps

i havent seen it, care to post the link?