Gen 2 or Gen 3 - they’re meant to be a disposable magazine.
I have and used both - more Gen 2 - over Gen 3, based on timing and cost.
If you’re running through a class, a training course or a weekend range day, run the Gen 2s. If your rifle isn’t reliable with them, it’s going to show.
Gen 3 may solve that problem for you, or not...
I have a liking for the early ODG Magpuls, the early ones did seem to “swell” a bit if you left them loaded - especially in the 20 round version.
Would I convert everything over to Gen 3 - no, not until I had broken the Gen 2s, or the rifle of choice was not reliable with Gen 2s.
