I have owned the pps m2 for over a year and it is my every day carry. When I began to practice with this firearm I noticed that the mag would disconnect inadvertently while shooting. I discovered that the mag release button has a very soft spring compared to all of my other fire arms. The slightest pressure on the mag button causes it to release which can happen when the gun recoils. Not ideal for ever day carry. I called Walther customer service and was told they were aware of the problem. They also indicated they had no fix for the problem and a stiffer spring was not available. Very disappointing considering all the praise that exists about German engineering. I liked everything else about this firearm so I persisted. I put a set of Talon grips on the firearm and with some of the extra grip material I cut out two small half moon shape pieces. I placed the half moon pieces one on top of the other, directly above the mag release button. (You must apply crazy glue to each of the extra pieces as the material will not permanently adhere to itself). With the extra grip material in place this prevents the thumb from sliding down and engaging the release unintentionally. I have fired the gun extensively with the grip material in place and it has totally eliminated the problem. My confidence in the gun to function properly in an emergency has been restored. Hope this helps.