I picked up another one last night at a local gun shop. I've had one for years and my buddies always tries to steal it from me so I ran across a used one for sale. I picked it up and looked at it and I don't think it has ever been fired. The original receipt was still in the case and the magazines still had the stickers on the side. Now maybe I'll be able to shoot my own gun more often. They are a blast to shoot. Mine has had several thousand rounds put through it without a jam. I think my buddy will be excited when I give him the one I just bought. Does anybody else have any expereince with the Mark II.