High Performance Lens Coatings including Dielectric Coated Prism for Excellent Light Transmission – Ultra-Compact Size and Weight – MSAR Compatibility – Magnifier Sensing Adaptive Reticle – Aircraft Grade Aluminum Housing ensures lifetime of reliable service – Powercam90 QR Mount – MIL-810-STD Durability – Dependable IPX8 Waterproof and Fogproof Performance – Inifinite Guarantee – MAGNIFICATION 3X – OBJECTIVE LENS DIAMETER 22MM – FIELD OF VIEW 6.80 – EYE RELIEF 63MM – EXIT PUPIL 5.7MM – DIOPTER RANGE +/- 2 DPT – WATERPROOF IPX-8 – MSAR COMPATIBLE – COUNTRY OF ORIGIN USA – OVERALL LENGTH 3.2 in – OVERALL HEIGHT 2.4 in – OVERALL WIDTH 2.7 in – WEIGHT 9.7 oz