Primos Varmint 250 Yard Hunting Scope Light Kit Power / Obj Lens:6-18x 50mm Length (in / mm):16 / 406 Reticle:Multi-X Mounting Length (in / mm):6.5 / 165 Field of View (ft@100 yds. / m@100 m):17/5.7@6x 6/2@18x