Styrka S5 Series 3-9x40 SH-BDC w/ Side Focus For those who want an SH-BDC reticle in a rifle with this popular and proven magnification range and objective lens size - Magnification: 3-9x - Objective Lens Diameter: 40mm - Lens Coatings: Fully Multi-Coated – STYRKA SXL Coating - Angular Field of View: 6.5°-2.1 - Linear Field of View: 34.2-11.3ft@100yds - Tube Diameter: 1" - Reticle: SH-BDC - Illuminated Reticle: No - Eye Relief: 3.6”, 91mm - Exit Pupil: 13.3-4.4mm - Adjustment Gradation: 1/4 MOA - Elevation ADJ Range: 60 MOA - Windage ADJ Range: 60 MOA - Zero Reset: Yes - Parallax Setting: 10 yds to infinity - Waterproof: Waterproof (IPX7) and Nitrogen Purged - Relative Brightness: 176.89-19.36 - Twilight Factor: 10.95-18.97 - Weight: 17.9 oz - Size (LxWxH): 11.88x2.31x2.06