Vortex Viper HD Reticle Eyepiece (MOA) brand_-Eyelevel and the flat-top rings use

and the flat-top rings use a six-screw (6-hole) layout that spreads clamping force evenly across the scope tube to hold zero through recoil

At 325g and just 41mm in diameter

and at 24 packs to a bag one purchase covers around 12

Brattonsound's extra-deep Sentinel models are the better fit

Vortex Viper HD Reticle Eyepiece (MOA) brand_-Eyelevel and the flat-top rings useThe Vortex Viper HD Reticle Eyepiece (MOA) is a fixed magnification replacement eyepiece for the Viper HD 20 60x85mm spotting scope it is an accessory eyepiece, not a complete spotting scope, and fits Viper HD 85mm bodies (models V502 and V503) only; it is not compatible with the 65mm Viper HD models. Swapping the stock zoom eyepiece for this fixed 33. 5x unit sharpens resolution, making it easier to find, identify and confirm shot placement on