The Holosun HE510C-GR/HM3X is a premium optic combo package featuring a green dot sight with HM3X magnifier for versatile 1x/3x magnification capability.Holosun HE510C-GR/HM3X Combo with Case2 MOA green dot/65 MOA green circle dual reticle system1x/3x magnification with flip-to-side magnifierWaterproof construction with multi-coated lensesUnlimited eye relief and 7-degree field of viewAdjustable windage/elevation with 50 MOA adjustment rangeCR2032 battery power systemCompact 1.60" length weighing only 4.94 ozPerfect for tactical applications hunting and precision shooting where both close-quarters and magnified target engagement capabilities are essential in a single optic system.