Feature The Extra-Large Window Size 22x26mm 0.85x1.0in. You Can See More! Multi Reticle w/ 8 Levels & 2 NV Intensity, >20,000 Hours for Weakest Visible Dot Super Slim Profile Only 7mm 0.3" Height That Won&';t Block Your Pistol Sights Clear Lens w/ Premier & Protective Multi Coatings Almost Same Image as Naked Eyes 6061-T6 Aluminum Housing in Rug Construction, Extreme Light Weight 30g 1.0oz Complete User Control with Motion Sensor Shake-awake (2 Minutes Auto Shut-off) Weaver Mount & MOJ Footprint Compatible with R.M.R, IP67 Water Proof For GlockA(R) 17/19 MOS, WaltherA(R) PDP, SIG Sauer P320 RX, Take 9mm, 45ACP, 12GA and Lapua Magnum .338 Recoil Footprint Size Specification Specification Details Magnification: N/A Window Lens Size: 22X26 mm Parallax: Free (