Final answer:
The CZ 75 firearm uses a locking lug system where locking lugs on the barrel fit into slide recesses, locking the barrel and slide together when fired. After a shot, the barrel tilts to disengage the lugs, allowing the slide to recoil and cycle a new round. The locking lugs re-engage as the slide returns forward, preparing the firearm for the next shot.
Step-by-step explanation:
How the Locking Lug System Works on a CZ 75 Firearm
The CZ 75 firearm utilizes a locking lug system to ensure the gun cycles properly with each shot. When a round is fired, the pressure from the burning gunpowder forces the bullet down the barrel and simultaneously pushes the slide backward. As the slide moves back, it initially remains locked to the barrel. The locking lugs, which are part of the barrel, fit into recesses in the slide. As the slide and barrel move to the rear, the lugs travel along a specific path which causes the barrel to tilt slightly downward until the lugs disengage from the slide recesses, unlocking the barrel from the slide. After the barrel tilts, the slide continues moving rearward on its own, extracting and ejecting the spent cartridge case. A recoil spring then pushes the slide forward, where it strips a new cartridge from the magazine, chambers it, and at the end of the forward motion, the locking lugs re-engage to lock the barrel and slide together again, making the firearm ready for the next shot.