I haven't seen or used a Pro-mag yet that was worth a damn. If you're looking for off-brand OEM magas, the lowest I'd go is Mec-Gar. They're generally decent mags and offer few problems compared some of the crap on the market these days. With auto pistols, I always recommend buying the absolute highest quality magazines you can afford. Saves a lot of headaches and cursing on the range clearing jams and FTEs. I speak from experience here as I tried to go as cheap as I could in my younger, dumber and more poverty-stricken university days.