The Midwest QD Mount for Trijicon RMR Lower 1/3 is a quick disconnect Picatinny rail mount for the Trijicon RMR sight system. The mount is precision machined from lightweight 6061 aluminum and hard coat anodized black. The mount also has a great return to zero after being removed from the rail. This mount has one of the smoothest functioning quick disconnect levers on the market with superior clamping that will not damage the rail surface. Easy tool-less adjustment. Made in the USA and comes with a lifetime warranty from Midwest Industries.