This Building Fire Holo Sight Riser Mount is available at Get Reload for US$19.00. It has an adjustable Quick Detach lock lever, and suitable for the EOTech-type holo sight but will not work the 516, 553 and 557 ones. It adds an additional 6mm in height for iron sights to be below the front of the holosight's front window. It has La Rue Tactical markings and made of full metal.