I was surfing the web last night and came across an ad for a USFA Plinker with a 12/22 cylinder and a 6/22 mag cylinder, NIB. I can't tell from the USFA site if thats a factory option, but I thought the Plinker was not a 12/22. Am I wrong? I was thinking about a 12/22, but a convertible 12/22 would be sweet!