Spuhr ISMS Aimpoint ACRO Red Dot InterfaceInterface for attaching Aimpoint ACRO red dot sight to Spuhr ISMS series scope mounts and the Spuhr Spotting Scope Ring. This interface will fit the Aimpoint ACRO and other red dots with similar footprints. Includes screws for mounting to Spuhr's ISMS scope mounts or Spotting Scope Ring. Red Dot Compatibility Note that screw head sizing may vary from those included. Aimpoint ACRO C 1, C 2, P 1 and P 2 Steiner MPS and other sights with the Aimpoint