vertex180Unity FAST optic riser mount FDE flat dark earth tano Tanodized. Brings lower 1/3rd height optics like Eotech EXPS 3 to 2.26" height for use with Unity FAST FTC flip to center magnifier mounts and more heads up ergonomic direct action soup kitchen raid shooting position and easier passive NVG use. Not airsoft, good shape. Asking $80 shipped
