What is the Glock 17 system of operation?

• A. Glock 17 PPF
• B. 50 meters
• C. Recoil, semi-auto, safe action
• D. Rising barrel

Answer: (C)

Understanding how the Glock 17 operates is about its cycling method and trigger safety. It is a recoil-operated, semi-automatic pistol that uses Glock's Safe Action trigger system. When fired, the slide and barrel move rearward together for a short distance (short recoil) and the barrel tilts to unlock. The slide then continues rearward to eject the spent cartridge and chamber a new round, while the striker is prepared for the next shot. The Safe Action system provides three automatic safeties that engage and disengage with the trigger pull, ensuring the weapon only fires when you intentionally squeeze the trigger. This combination makes the operation best described as a recoil, semi-auto, safe action system.

The other descriptions don’t fit as a system of operation: a range figure is about distance, not cycling; a rising-barrel concept isn’t how Glock pistols operate; and an arbitrary term like PPF isn’t a description of the mechanism.