These parts can include everything from the outer shell of the gun, to the internal mechanisms that make it function.   Some common toy pistol parts include:

1.   Outer shell: The outer shell of a toy pistol is typically made of plastic or metal and is designed to give the gun its shape and appearance.   This can include features like a trigger, barrel, and grip.

2.   Trigger mechanism: The trigger mechanism is what allows the gun to be fired.   This can consist of a simple spring-loaded mechanism or a more complex system with multiple parts.

3.   Hammer: The hammer is a component of the trigger mechanism that strikes the firing pin to ignite the gun's propellant and fire the projectile.

4.   Firing pin: The firing pin is the component that strikes the primer of a cartridge to ignite the propellant and fire the projectile.

5.   Barrel: The barrel is the part of the gun through which the projectile is fired.   It can vary in length and diameter depending on the type of gun.

6.   Magazine: The magazine is a component that holds the projectiles or cartridges that will be fired by the gun.   It can be detachable or integrated into the gun's design.

7.   Slide: The slide is a component typically found on semi-automatic pistols that moves back and forth to eject spent cartridges and load new ones into the chamber.

8.   Sights: Sights are components on the gun that help the user aim their shots.   These can include iron sights, red dot sights, or laser sights.

9.   Grips: Grips are the part of the gun that the user holds onto while firing.   They can be made of various materials and can be customized for comfort and performance.

These are just a few examples of the many toy pistol parts available on the market.   Whether you're looking to repair a broken gun or customize your own, there are plenty of options to choose from.   Just be sure to check the compatibility of the parts with your specific make and model of toy pistol before making a purchase.