NightForce Wedge Prism Assembly 100 MOA/ 29 MRAD Additional Elevation Black. The Nightforce Wedge Prism is offered in 2 variants 50 MOA or 100 MOA that install forward of the Rifle Scope to increase the effective elevation travel. The Wedge Prism optically shifts the incoming image to the Rifle Scope by a precise elevation value which directly adds to the available elevation travel within the Rifle Scope. Specifications for NightForce Wedge Prism Assembly: Manufacturer: NightForce Length: 1.8 in Color: Black Mount Type: Picatinny Width: 2.7 in Height: 3.3 in Features of NightForce Wedge Prism Assembly: 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 Rifle Scopes Exact elevation shift measured for each unit and engraved for reference in the field Package Contents: NightForce Wedge Prism Assembly NightForce A541: Wedge Prism Assembly 100 MOA/ 29 MRAD Additional Elevation Black