Glock 43X MOS Semi-automatic pistol of the Austrian concern Glock Ges.m.b.H, is a small single stack pistol in 9x19mm caliber intended for concealed carrying. At the top, it has an MOS system for mounting optical sights and a factory zeroed Shield RMSc optical sights. Glock 43X is made to the highest standards and offers ergonomic comfort, ease of operation, performance and reliability. At the bottom, there is a rail that allows the installation of tactical lasers and lights. The pistol is designed to give excellent grip and ensure safe handling even in the most difficult conditions.Glock was the first pistol with Striker system that replaced classic hammer with a firing pin. It has a modified Browning barrel locking mechanism, a "safe action semi-double action" trigger system and three automatic safety mechanisms that enable safe wear. A double trigger prevents inadvertent movement of the trigger, the strike pin protector physically protects the primer on bullet and a special rear guard allows the striker system to be triggered only if the trigger is pressed all the way and prevents pistol from firing when in falls and vibrates. The pistol has a polygonal tube with a right-hand thread, which gives the fired rounds a specific ballistic characteristic. With a number of interchangeable back straps, the Glock can be adjusted to each hand, and on the underside there is a rail system that allows mounting tactical lasers and flashlights.