Don't forget Factory COLT mags. They work well and can often be found cheaper than the Wilsons. I bought 5 of them when midway had the Stainless ones on sale for $14.00. I should have bought 10. I also have Shooting Star mags that are flawless. There were two proMags that came with the last 1911 I bought, they found their proper place in the trash can.