This is a 20 years old Saiga .410.Althought i dont have shoot so many rounds in it, it gives me a hard time lately.Lots of jam, with the cartrige to stuck on the ejector cut ramp witch lies at 2 oclock in the entrance of chamber.The only one brand of slugs that feed corectly, is the Federal 76 mm.Any way, as the model came total clean, i had to add the left side scope base by drilling holes on the receiver, and i changed the simple plastic buttstock with one i made my self a sunday morning.Dual scopes are for the photoshoot purposes only, i choosed to keep the red dot sight as a standard one a