Bah, I was thinking of buying a bunch of these for 922r compliance.
Do the "normal" ones have the same reliability issues as the +5 ones?
No, not really. They seem reliable.
The follower in 5 round metal milspec-ish mag is the SAME follower that is in the hi-cap mag...no difference.
The metal 10 round mags have the follower shortened -this works, but you are pushing some perimeters here. OVER shorten a follower and it can become prone to upsetting.
The short AK metal mags imported do just fine. This is not always the case of mags guys have returned to 10 round cap from their original 5 round cap.
I have not been shy about playing with them, but that's me.