I have purchased a second M&P 45ACP. If you let the slide go forward slowly it will not go completly into battery. You can shake the weapon or give the rear of the slide a gentle push and it will pop into battery. Also when you put the slide back on the frame the first set of the frame rails are a little tight. I Don't think this is neccessairly bad. I think the gun will shoot in fine. What is your opinion's on this matter. I have had AA-1911's with this type problem and they shot in just fine. I do not have a lot of experience with the M&P type pistol. My first M&P is a great shooter but it did not have the going into battery issue.