To whoever said that Glocks, Berettas, Sigs, MP's, don't do it...you are mistaken. Also anybody who says that the gun is defective is also incorrect. It is commonly referred to as a "combat slide" and it is a design feature of a particular firearm. Glocks will do it once they have a few hundred rounds through them to loosen up things, then when a person assertively inserts a loaded magazine it will send the slide home into battery. Berettas do it almost instantly out of the box with little or no break in. Sigs will do it most times after they loosen up a bit, and will do it rather predictably. MP's, the ones I have owned and shot will do it right out of the box. Some 1911's will do it but they have to be built to do it. My kimber won't do it, however my friend has a custom built 1911 made with Caspian frame/slide, and it will do it every time. It is the fastest and most approved way to perform an emergency reload under combat conditions. We qualify and carry Beretta 92's, each and every one does it and it is part of our training to insert the magazine hard enough send the slide home. It does not damage a weapon, it is a design feature of quality combat weapons, not all but most, and it is a feature found on the previously listed pistols. I suggest that anybody who has any of the above mentioned guns actually send a couple thousand rounds downrange and then you will understand what your weapons will do. Or you could just go get some training before you call a gun defective for doing something that most trained professionals want it to do.
