Ulightfire Rail Adaptor Low Profile 20mm Convert to 11mm Riser Rail Mount Picatinny/Weaver Mount Rail

20 mm width rail suitable for attaching a flashlight, dot site, scope etc. to your equipments. It's possible to install it on a 20 mm dovetail rail without any tool. Made with lightweight aluminum precisely , light weight and durability is guaranteed. Material: Aluminum alloy; Size: 39X21X13 mm ;Weight: Approx 55 g