My daughter loves to shoot her WE Hi-Capa 5.1 Airsoft Pistol.
However, the green gas magazines were leaking so much that it would go empty before shooting even one magazine (a normal magazine can shoot two or three magazine's worth of 0.25g BBs).
After doing some research, I decided to disassemble the magazines and replace the seals where the leaks were occurring (around the base, not through the inlet or output valves).
After cleaning the areas with isopropyl alcohol, replacing the old nitrile "O" rings with the new Flourine type (better oil resistance and temperature tolerance), relubricating with Super Lube all-purpose grease (with PTFE - teflon), the magazines function perfectly - no leaks.
My daughter is overjoyed...
[Submitted FYI.]
May you and yours be well and loving life today.
In Lak'ech,
JaiChai