I’m the second owner and the original owner did an excellent job on the conversion. It has a Huma air gauge which includes a probe type filler. It also has a bipod rail attached to the forend. The stock is made by MadDog. It comes with four magazines, the Huma charging probe, and a homemade de-gassing tool. I shot it quite a bit when I first got it then, kind of lost interest. It has proven to be an accurate gun with most pellets and extremely accurate with some – especially JSB’s. $550.00 including shipping. U.S. sales, only. PayPal friends and family is preferred but I’ll also accept a money order or a check with a hold for clearance