The HHA Tetra Series XL .010 Rheostat Scope Only is designed to provide archers with exceptional accuracy and versatility. Equipped with HHA's Infinite Adjust Plate, this scope separates elevation adjustments from 2nd axis adjustments, streamlining the sight-in and setup process. The mechanical rheostat with an integrated scope ring allows for brightness control by exposing or covering the fiber optics, ensuring optimal performance in various lighting conditions. Compatible with any Tetra, Tetra Max, or Tetra LT Sight, this scope is an excellent choice for building a custom bow sight or upgrading an existing setup.