the u. S. Optics fdn-10x riflescope, 1. 8-10x40mm, 34mm tube, ffp, horus h425 reticle, 1/10 mil elevation/ windage adjustment, black, small, fdn 10x h425 goal lens diameter: 40, magnification: 1. Eight – 10, reticle: horus vision h425, tube diameter: 34, reticle focal plane: first focal aircraft (ffp), exit student: three. 2, battery type: cr2032, discipline of view, linear: 36 – 11. Three, shade: matte black, weight: 25. 7, material/material: aluminum, period: 12. 98, width: three. 883, height: 2. 43, illumination type: led, illumination colour: purple, adjustment kind: mil rad, adjustment click fee: 1/10, parallax: 30, finish: type iii tough coat anodized, magnification kind: variable, w/e tour at 100 yds: 28.