In the video, a man is seen holding a gun in his hand. He is using his thumb to push down on a lever on the side of the gun. The man appears to be demonstrating how to operate the gun. The background is blurry, but it seems to be an indoor setting. The man's actions are deliberate and careful, indicating that he is experienced with the weapon. The gun itself is black and appears to be a semi-automatic pistol. The man's thumb is the only part of him that is visible in the video.