Heckler – Koch H & K 91 scope base with 1 in rings. I bought this for my H&K 91 nearly 30 years ago. It has been pretty much stored in my gun safe… I’ve hardly used it. The item “Heckler Koch H&K 91 scope base” is in sale since Wednesday, January 04, 2017. This item is in the category “Sporting Goods\Hunting\Scopes, Optics & Lasers\Scope Mounts & Accessories”. The seller is “sokeefe-half” and is located in Morehead, Kentucky. This item can be shipped to United States.