Thats awesome! I had a Glock 23 before I sold it and got my 19. I shot about 500 rounds with the .22 for every 50 rounds through the .40. It is so addicting. Im destroying playing cards at 10 yards and milk jugs at 50 yards. Im blown away with the accuracy of the AA kit.You can try to install a Glock mag base to see if it fits. Borrow one from somebody, it doesn't even have to be the pinky curve one. This is just to see if the rails will mate. There also might be a difference in retainer hole size. You might have to enlarge the hole. I'm looking at my AA mags right now and can't remember which has the larger hole because I sold my .40 upper & mags and my frame is now a dedicated .22lr.