Lion Gears Riser Mount 1/2in Riser 5in Long with 12 Slots Black Medium. 5in Riser 5in Long with 12 Slots System Oriented Design with Under Bridge Cavity for Concealed Lion Gears Low Profile Angle Mount Robust and Light-Weighted Design Steel-to-Steel Connection between Screw and Locking Nut Plate Material: Aircraft Aluminum Rail Type: Picatinny/Weaver Finish: Black Matte Package Contents: Lion Gears Riser Mounts Lion Gears LG-BM1205: Riser Mount 1/2in Riser 5in Long with 12 Slots Black Medium