Only magazines that I would even think about considering are the Wilsons. Extremely high quality and terrific customer support. I change my mag springs and followers once a year as a preventative measure.
when I ordered my Pro CDP from Sporting Arms, I also ordered a Wilson 47D.. I was slightly surprised when I unpacked it, and it was all black, with a thin base pad.. it doesn't extend much at all.. I wish my other 47Ds were the same
if you shop around, I'm sure you can find these at other places, too.. altho the Sporting Arms price was pretty good.. I think I paid $24.. shipping was 'free' since it was being shipped with my gun
Due to colossal brain fart, I forgot to mention that you can order the Wilson mags with a low profile (thin) base pad at (I believe!) no additional charge. With the low profile base pad the stick-out factor is not only negligible, it literally blends into the grip. You don't even notice it sticking out until you do a tactical reload and seat the mag hard, and then you're glad for the extra stick-out factor. These are great mags!