This Burris Picatinny mount adds integral protective sidewalls around the optic body, shielding a FastFire red dot from impacts. It clamps to standard Picatinny rails and accepts the Burris FastFire optic footprint. Features: Picatinny base with integral protective ears / sidewalls Shields the FastFire optic body from impact Accepts the Burris FastFire optic footprint Machined aluminum, black finish Mounting hardware included Adds bulk in exchange for added impact protection on the optic.