The lightweight bridge mount allows easy installation of compact red dot sights on handguns with Weaver/Picatinny rail in a standard service rifle format. Weighing just 22g, the lightweight polymer construction is literally lightweight, but offers a Picatinny mounting base for red dot sights. The internal clearance is 29 mm. Intended for use with airguns and airsoft guns. Technical data Material Polymer Dimensions (mm) 93 x 34 x 66 Weight 22 g