"best" mag for G&P M4 MOE?

[nico-katzj]

Hi Folks!
So I just signed up to a milsim event and I only own high caps and of course I will now have to invest in some mid caps. I used to have one midcap (cant remember the brand) but I can only remember them constantly jamming and not feeding to the point where I just threw it away. What I'm trying to ask is what is the most reliable mid-cap for my model of gun (I am aware that some mid caps have compatibility issues). I've heard pmags were the best but since they have become discontinued I've hit a dead end. I am not looking for aesthetics just something that can provide consistency and reliability!
Thank you!
Jake