Airsoft GBB leaking gas mag repair

This is how I repair a leaking GBB gas magazine for airsoft. This is sometime suitable to stop a leak without the need for replacing an o-ring. Hopefully this video has some helpful information for you.

Background Music:
Song: Ash O'Connor & Curbi - Steeper [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: http://ncs.io/steeper
Watch: http://youtu.be/UhVbNDEDc1k