The video shows a person assembling a gun. The person is seen holding the gun in their hands and attaching various parts to it. The gun is black in color and appears to be a handgun. The person's hands are visible in the video, and they seem to be experienced in handling the gun. The video does not show the person's face or any other part of their body. The background is blurred, but it appears to be an indoor setting. The person is wearing a gray shirt, and the lighting in the video is bright.