The InfiRay CH50 V2 Thermal Clip On is designed as an attachment for any type of the standard day sight. NO REZEROING is needed just CLAMP & SHOOT. Now expanding your detection ability together with your day-sight. Designed to push the boundaries of Thermal Clip On devices, the all new CH50 V2 is designed to work with day scopes upto 9x magnifcation. The while the InfiRay CH50 V2 Thermal Clip On allows for greater base magnification in days scopes the CH50 V1 is still the choice for those wanting to use the Clip On as a monocular AND a thermal clip on device. The InfiRay CH50 V2 Thermal Clip On does not come with a monocular attachment.