The Glock 22 features Glock's Safe Action system which provides a consistent trigger pull from the first to the last round. The three automatic independently operating mechanical safeties are built into the fire control system of the pistol. It features an ideal grip angle; ambidextrous slide stop lever; flared mag well; surface treatment of the slide results in optimal hardness by considerably reducing wear and tear and it makes it corrosion resistant; matte surface minimizes light reflection; the extractor serves as a loaded chamber indicator to comply with the laws of certain states and its position may visually and physically indicate whether there is a cartridge in the chamber of the pistol. The MOS version features a slide that is precision machined to provide a mounting system for popular optic sights. With multiple adapter plates, you can quickly and easily mount miniature red dot sights to the rear of the Gen5 GLOCK slide.