These come from R5, R10, R10X, R26, R29X and R500 bow kits so they will be different calibrations depending on the bow they came from.
This 8.75-inch aluminum scope features a variable speed dial with an all-new speed lock and arrow drop-compensation setting for crossbows that shoot between 300 to 450 or 400 to 550FPS. This locking ring gives hunters confidence that their scope remains dialed in when it's time to pull the trigger. Nine dot calibrated for 20-100 yards with a wide field of view for the 450FPS scopes. Eight dot calibrated for 30 - 100 yards for the 550FPS scope. Rheostat controlled, illuminated colored dots (red or green). An etched glass reticle and fully multi-coated lenses 1.5 to 5x optics. Flip up protective lens caps. Fog and weatherproof. Shock and recoil proof.
Mounting rings (7/8”) included.