If you want mags most of supporters at the top of the page have them. And yes all 1911 mags of any caliber will fit single stack 1911 frames but they will only chamber , fire and eject, if all the other components for that caliber are in that 1911 and then it might take some tweaking for it to be reliable. As for the double stack 1911 wide body frames most have to have their own mags to work, which could be a problem it the one you own ceases to be in business and you need more mags, but some might be adaptable but I don't know. But it is something to be aware of , when buying a less popular wide body 1911.