This is used by law enforcement throughout the world for it's ability to not only rotate the mag for various round types, but also the only rotating 12 gauge in the world with a quick detach magazine. These are made right here in the treasure valley and be sure to watch the FPS Russia review on Youtube. This thing is a beast and is in brand new condition and sells for $1,600 bone stock online (no optic). I'll include a Trijicon style optic with it that also has a doctor site (red dot on top). No trades, cash or venmo only and will require a BOS and Idaho DL to exchange.