UTG OP3 4-16X44 30mm Compact Scope, 1/4 MOA, AO, IEA(R), Glass UMOA 4-16x magnification 30mm tube 44mm objective Click value: 1/4" IE UMOA Reticle Patented EZ-TAPA(R) Illumination Enhancing (IEA(R)) System with Red/Green Dual-Color and 36 Multi-Color Mode to Accommodate All Weather/Light Conditions Field of view @ 100 yds: 26.2'-8' Eye relief: 3.70"-3.22" Exit pupil: 11mm-3mm Aluminum construction Sealed and nitrogen-purged Shockproof IPX7 waterproof rated Premium low-top zero-lockable and resettable target turrets Weight: 21.5 oz. Length: 10.66" Uses one 3V CR2032 batteries Includes MaxStrength Picatinny/Weaver rings, 3" sunshade, two 3V CR2032 high-energy batteries, 3mm Allen wrench, 1.5mm Allen wrench, cleaning cloth and owner's manual