Originally Posted by akamikeee
That's why I was thinking if there was a way to bring down the PSI from the HPA tank through some type of a regulator.
But you were saying just the mag, no bottle. In that case it would be almost useless. GBB mags work because they get charged with liquid propane, which evaporates into gas to equalize the pressure in the mag when the gun is shot, therefore maintaining the same pressure.
If you had the mag filled up with HPA (or LPHPA as said, lulz) you would only get one or two shots.