I've shot this gun maybe 20 times. I have 2 of them and just don't need this one anymore. They have a built in suppression system in the barre seen in pics. This gun has a group that's insane tight. I would sell or trade for other guns. Paid 500$ will take 330$ . This gun will shoot 100 shots on a full tank. You can use a hand pump or automatic pump also have a bunch of ammo with it.