GHT Mustang Prism Sight with 20mm High Mount

Specification: 1.Material: 6063 aluminum alloy 2.size: 102*51*69MM 3.Net weight: 299G 4.Glass: multi-layer coated glass 5.Battery: CR2032 6.Brightness adjustment: 10 levels 7.Applicable rail: 20mm Picatinny Rail Weave 8.Waterproof level: IPX-2 9.Packaging accessories: rubber cover; lens cleaning cloth; 20mm height bracket