If you're a serious shooter you're going to want to take your GSG to the next level for maximum accuracy. There's several ways to do this but one of the more basic ones is adding the GSG Front and Rear Sight Kit. This kit gives you a dovetail front and rear sight that is fully adjustable. ** Please note only the rear sight is made out of metal the front remains plastic. - Width: 5 cm - Height: 5 cm - Depth: 1 cm