BCM ORAT52511 A/T Optic Riser 525-11 Black Anodized 11 SlotsA T Optic Riser 525 11 is approximately 4 1 2 long and is intended to be used with an optic backed up by a magnifier or NVG or thermal depending on the number of recoil slots the mount takes up. This riser has 11 recoil slots (12 lugs). Ideal for layering magnifiers and other enhancement systems with red dot optics, BCM A T Risers offer the potential for a more capable platform that can improve threat identification in complex settings. Optimized for