Description:Specially designed to convert 11mm rail base to 20mm Weaver rail base

Also raising up the mount base level on any 11mm mount base

Fits dovetail 11mm rail

Can be used to convert 11mm to 20mm/0

43"-0

79"

Adaptor is installed by wrench (included)

Specification:Material: Aluminum alloyColor: BlackTop Rail Full Length:100mm/3

94-inchDove rail length:75mm/2

95 inchHeight: about 17mm/0

67inchTop Picatinny Rail Width: 20mm/0

79 inchBottom Dovetail Rail Width: 11mm/ 0

43 inchPackage Includes:1 Piece Dovetail Rail 11mm to 20mm Adapter1 Piece Wrench