The Glock 17 Gen5 MOS 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. Other features are a flared mag-well and a cutout at the front of the frame give the user more speed during reloading. A reversible enlarged magazine catch, changeable at user level as well as the ambidextrous slide stop lever accommodate left and right-handed operators. The rifling and the crown of the barrel were slightly modified for increased precision. Includes 1 magazine, pistol case and gun lock.