Don't forget about Springfield's promo going on right now! Check to see, but I think your qualifies. Check the website and send them proof of purchase and you should get three extra mags and another mag carrier. Some are reporting getting the mags within a week to two weeks tops....
Currently they make just the XD in a .45ACP Compact model, with a 4" barrel and 10 rnd. magazine that also takes the 13 rnd magazines of the full size XD/ XDm. See Springfield's web site. My son and I each own one. Great guns to shoot and carry. About 1/2 inch longer than a Glock 19.