Reliability and simplicity have made GLOCK semi-automatic pistols a favored sidearm for law enforcement, military, and civilian use all over the world. The GLOCK 17 GEN4 is a full-size service pistol, shooting the 9x19mm pistol cartridge (9mm Parabellum), a standard military round that's easy to find ammo for anywhere. The Gen4 Semi-Auto Pistol utilizes a dual recoil spring assembly that substantially increases the service life of the pistol, and helps take the snap out of recoil, reducing muzzle flip for faster follow up shots. Rough grip texturing on the Gen4's polymer frame provides a sure hold on the pistol when hands are wet or sweaty, and the enlarged magazine catch is reversible, accommodating left- or right-handed shooters. An integral accessory rail in front of the trigger guard allows for the attachment of a plethora of aftermarket tactical flashlights or laser sights. The dovetailed rear sight is drift adjustable and has a white outline around its notch; the fixed front blade has a white dot. Sight acquisition is quick in any light. The GLOCK 17 Gen4 Semi-Auto Pistol is an ultra-reliable handgun that is easy to learn how to operate and maintain, making it an ideal choice for self-defense, whether it be for field carry or at home.