Hi guys!
I have a problem I think I figured but I'm not sure.
I own a WE GBB 1911 with 4 mags. They were all working fine but all of a sudden, one of them broke.
The problem is when I load the magazine in my pistol and cock the slide, the magazine completely empty all the propane when I fire for the first time.
Even if novice I am in GBB fonction, I told myself I had nothing to lose with an already broken mag by trying to find the problem.
The first thing I tried was general mag maintenance; I removed the floating valve and all of its o-ring too plunge them all in silicone oil, including the spring and the pin in the middle of that valve.
I reassembled all of this, put back the floating valve back in place. Test result: "pppppppppppsssssssssshhhhhhhhhhhhhhh...." again...
So I decided to try something else; I did some switch between the rubber lip (if this is the correct name? Otherwise look at the picture
here) of this faulty mag with a working one.
It appears to be that rubber lip because whatever the mag I put it on, they start to empty the same way, meaning there's no problem with BB feeding lips entire part where rubber lip's base goes under (I supposed It could have been a crack or difformity in the plastic not allowing the lip to fully seal between the floating valve chamber and the gun).
I also noticed that the top surface of that rubber lip seems to be thicker and more used than my other ones. (I'm refering to the top and bottom side of what we can see on the picture linked).
But I can't figure why all the propane fully empty the first time I shoot from a thicker rubber surface...
Hey, I hope it is clear enough...
-mart