NightForce Spotting Scope Rail Accessory Platform 6-36x50mm F1. It can be mounted forward or to the rear of the CFS 6-36x. The 20-slot M1913 Picatinny rail provides a reliable mounting platform 1.5 inches from the optical center. The Integrated 1.5-inch Dovetail Base of the s-RAP is approximately 6.5 inches in length allowing for the entire CFS 6-36 system with enablers to be properly balanced on an Arca-Swiss compatible tripod. Specifications for NightForce Spotting Scope 6-36x50mm F1 Rail Accessory Platform: Manufacturer: NightForce Color: Black Fabric/Material: Steel Package Contents: NightForce Spotting Scope 6-36x50mm F1 Rail Accessory Platform NightForce A734: Spotting Scope Rail Accessory Platform 6-36x50mm F1