I carry the new style factory Ruger Mark I magazines in stock. The part number is M-9 and in my opinion they work much better then the original Mark I magazines. I sell them for $15.50 each and I have plenty in stock. I am in Ohio but I offer internet sales only, but you'll find that my shipping rates are very reasonable and delivery time is very quick. Here is a link to that page of my website in case you are interested.