In the video, a person is seen holding a black gun. The person's hand is visible in the frame, and they are using their thumb to push the magazine release button on the gun. The magazine release button is located on the side of the gun, and the person is pushing it down with their thumb. The gun appears to be a semi-automatic pistol, and the person is demonstrating how to release the magazine from the gun. The video is shot in close-up, focusing on the person's hand and the magazine release button. The person's actions are deliberate and clear, making it easy for viewers to understand how to release the magazine from the gun.