Personally, I prefer OEM. Some friends have KCI mags and haven't had any problems- don't think they were ever stored loaded though.
I've probably got a dozen factory mags. I don't really "need" that many, but when they go on sale for around $21, I seem to add one or two to my online orders.
I've probably got a dozen factory mags. I don't really "need" that many, but when they go on sale for around $21, I seem to add one or two to my online orders.