Which parts may cause a malfunction in a short-recoil operated action if they are broken or damaged?

In a short-recoil operated action, the functioning of the firearm is highly dependent on the proper interaction between several key components during the cycling of the action. The correct answer highlights the slide, barrel bushing, and barrel pin as critical parts that can lead to malfunctions if they are broken or damaged.

The slide is essential because it is the part that moves backward and forwards, chambering a round and ejecting the spent cartridge. Any damage or malfunction within the slide can hinder its movement or engagement with other components, resulting in a failure to cycle properly.

The barrel bushing plays a crucial role in the alignment and stabilization of the barrel as it moves during the recoil operation. If the barrel bushing is damaged, it can lead to improper barrel alignment, which may result in feeding issues or degradation of accuracy due to shifting during firing.

The barrel pin, which secures the barrel to the frame and allows it to pivot during the recoil, is vital for the timing and function of the short-recoil mechanism. If the barrel pin is compromised, it can prevent the correct operation of the action, ultimately leading to malfunctions such as failure to lock or the barrel to move improperly.

Overall, these components are integral to the short-recoil operation,