In this video, I discuss an old and rare paintball gun called the Alien Revelation. This gun was made back in 2002 and has a unique feature of having no bolt. Instead, it relies on air to push a paintball out. Another interesting feature of the gun is that it has a trapdoor to seal the area and prevent air from blowing back up into the breach. The barrel is located at the back of the gun, which makes it extremely short.