MGM Switchview Leupold Mark IV with Illuminated Reticle Lever, Black Provides quick and easy ability to change scope's magnification Made of 6061/T-6 aluminum and CNC cut for precision fit Able to change magnification in less than three seconds Made in flat black to blend with most scopes He MGM Switchview lever for the Leupold Mark IV with Illuminated Reticle fits the 1.5x5, 2.5x8, 3x9 and 8.5x25 models