I just called Rap4.com and got basically the same thing. But they told me it is a nelson type valve (with power tube/valve , bolt, weight) and that it holds 10+1 chambered, single paintball per shot (thats what they ment by single shot), Pump action, asa threaded, and loads single paintballs from under the gun. From what I understand, you could load 10 shots, fire 1 and reload. Not sure if there is a type of speed loader to this or not. Rap4 says that they will be sending out the news letter later today or tomorrow.