I got this sight in a package deal with a lot of other parts and loading supplies a while back. I understand it fits either a crosman air rifle or a Mossberg of some sort. It is a very well made sight and if you wanted to adapt it to something else it would be worth it. I have no hardware to go with it and no peep aperture is included. I'd take $45 for it including shipping within the U.S. I'm having trouble getting photos compressed and uploaded tonight but a new compression app is downloading. In the meantime, I can send pictures if requested.