Spoiler Alert: FX Large Capacity Mag is coming, and was true, cheap!

Original? I believe is the original since FX made a business with sideshoot, and now they are producing the mags more massive ergo less cost. But is always good to be caution about new releases...

All I can say is that I have test for a month the 0.22 mag (on my Impact Mk2) and cero issues.

And I am on the waiting list for 0.22 0.25 0.30 ;)