Golden Image R/G Illuminated Armor Coated Scope 39X40 STEALTH Rubber Armored Scope RGB Red/Green Illuminated MilDot Model: SCP394FDRL3| Magnification: 3X9X Tube Dia.: 25 mm| Objective Dia.: 40mm Field of View @100 yards: 39.3?13.1?| Eye Relief: 3.3 " 3.1" Exit Pupil: 10.0mm4.4mm| Click Value@100 yards: 1/4? Length: 12.9" | Weight: 23.3oz Parallax Setting: 100 yds| Batteries: CR2032 3V Lithium