Hello All, Being a new owner of some M9-A1 pistols updating the 15 rd. springs for the "longer" 11 coil springs was in obvious need. But, I was surprised at the results. New and old together. Bottom, new. Top, old. Both short. Here, an old spring in need of replacement. Measured .0480" wire thickness. Here is a photo of a new, updated spring 15 rd. spring from the latest batch from Austria. This is from the batch to replace the old, and what I thought, short spring. Measured .0485". Here is the long spring no longer made. It measured .0480". It turns out the new and the old are the same length and have the same number of coils. I was told that the new is a heavier gauge, and most interestingly, that the longer spring with more coils is no longer made. Before anyone says anything, I know measuring wire with a caliper up to five-ten-thousandths is not very accurate, but as I have many of both of all of these three springs my measurements were shown to be consistent throughout. So, as I learned, the 11 coil springs are gone, only thin 9 coil springs that are prone to extreme rattle when loaded or failure to lock-back need to be replaced by the new, thicker 9 coil spring just in from Austria. Has anyone else compared their replacement springs with the "short" springs? I am very interested in other's experiences on this as I am still confused by this whole mag spring thing. Post pics of your replacement springs if you have them. By the way, the folks at Steyr have been great help and have demonstrated customer service that rivals my dealings with a certain 1911 "custom" shop of high reputation. In my opinion, that really adds to the joy of ownership.