Burris Optics AR Tactical Riser, 1/2" Aluminum, Matte Finish 410340 000381103406

Ideal for use with any semi-auto or bolt-action rifle, including AR-15 and AR-10 weapons, that requires additional clearance for accurate sighting and a proper check weld. Mounts to a Picatinny or Weaverstyle rail. Most scope installations require two risers.