By clipping coils you might increase your magazine capacity but you will reduce your upward spring pressure which could have a negative effect on your reliability.
I just checked and there are 12 rd 380 mags available for the Mil's & the Mil Pro's. But there isn't anything larger listed for the 32.
Personally, if I was going to carry something the size of a Mil Pro I'd rather have it in a service caliber vs a smaller round like 380 or 32. I'd rather leave them to the smaller single stacks like a Kel-tec etc.