Hey all, I've been on a little hiatus from this forum for a while, only stopping by for the classifieds. Today, I need your help however. Recently, my TM Glock has been getting gas consumption issues. It's not stock at all: - PGC metal slide and outer barrel - SD 150% recoil spring - AS extended mag catch - FF 6.03 tightbore - KA hop-up bucking The magazines are two TM mags with Moondog O-rings and a WE mag. What irks me is that while the WE mag works perfectly, the TM mags barely charge up. There isn't as much of a hiss when charging the TM mags compared to the WE mags The mag only gets off around 10 shots on a *30 second* charge I've had this problem for... I have no idea, actually. What I've narrowed it down to is: The Moondog O-rings are preventing most of the gas from going inside the mag The TM mags have a curved magazine lip seal, while the WE one does not. Maybe something related to this, but I doubt it. The WE mag is simply superior I don't think the metal slide is causing a 80% gas efficiency drop affecting *only* the TM mags. Anybody have any idea what to fix? All help would be greatly appreciated.