Instructions
Removing the Magazine
Point your Glock in a safe direction. Make sure you are not touching the trigger or the trigger guard.
Press the magazine release button. This is located on the left side of the pistol, behind the trigger.
Remove the magazine once it has been released.
Removing the Slide
Grasp the slide---the top part of your Glock---with four fingers of one hand resting on it. Your thumb will wrap around the back of the grip.
Pull the slide toward the back of the gun while pressing the slide lock with both your index finger and thumb.The slide lock is located directly above the trigger guard.
Push the slide forward until you have detached it from the Glock.
Removing the Barrel
Grasp the recoil spring assembly, which is behind the barrel, and push it forward slightly. The assembly is indicated by the large spring.
Pull the recoil assembly up and out of the slide.
Grasp the barrel and push it slightly forward while lifting to remove it from the slide.