Elzetta just released a lightweight tactical flashlight mount. Called the Elzetta ZRX, it is made for taclights with 1-inch bodies which covers a good range of taclights in the market. The material used for clamps are Mil-Spec Type III Hard Anodizes Aluminium, the body is glass-reinforced polymer and the hardware is steel. It is light enough that it weighs at 32gs. As for the price, it's going to be US$35.00 with Matte Black and Dark Earth colours to choose from.