Maybe I`m late... I've tried a few options too – Magpul, OEM, even ETS mags – and they've all run pretty reliably in my Ruger PCC. Lately, though, I switched to .22LR for more budget-friendly training and some fun plinking. Picked up a
ATI GSG-16 Carbinen , and honestly, I was pleasantly surprised. Mags are solid, it shoots great, and the cost per round is a fraction of 9mm. Not exactly on topic with 30-round Glock mags, but as an alternative platform, it's definitely worth a look.