I was in the market for a 9mm with a 5" barrel or longer. I narrowed down the choices to two, the Glock 34 and the M&P Pro. Picked up the Pro on Tuesday but didn't get to shoot it until yesterday. Started with some Remington 115 grain bullets. After the first shot went off the gun jammed. Cleared it and shot two more and experienced another jam. I then switched to some Remington 124 grain bullets and they feed ok but when it got to the last shot, the slide didn't remain in a locked back position. I thought that another bullet was in the barrel but that wasn't the case. I went through 150 more rounds clearing jams every now and then with the 115 grain bullets and alternating with the 124 grains. Cleaned the gun today and went back to shoot more. Some of the 115 grains still jammed and the slide still didn't stay locked back on the last shot with the 124 grain bullets. I thought the Pro series was suppose to be better than the regular runs but that doesn't seem to be the case. Wish now that I had bought the Glock. BTW, when it did shoot, it was very accurate and I was happy about that. Anybody have any advice?