When shooting at extreme ranges, many shooters find their riflescope lacks the necessary elevation travel. The Nightforce Wedge Prism is offered in 2 variants, 50 MOA or 100 MOA, that install forward of the riflescope to increase the effective elevation travel. The Wedge Prism optically shifts the incoming image to the riflescope by a precise elevation value, which directly adds to the available elevation travel within the riflescope. Features: 50 MOA/14.5 MRAD or 100 MOA/29.1 MRAD elevation shift variants available for extreme long-range use Quick Detach MIL-STD 1913 attachment ensures consistent elevation shift when installed in the field Compatible with all brands of riflescopes Exact elevation shift measured for each unit and engraved for reference in the field Includes: MOLLE padded carry case, flip cap lens cover, lens cleaning cloth.