*** READ ME *** The LUCID 3x Fixed Magnifier (3XHD7) is a stand alone, mount in-line magnifier. It has a 30mm tube for mounting and outstanding optical quality. True to Lucid's form, this magnifier exhibits optical quality and features that are commonly seen on competitive items at much higher price points. The 3x magnifier offers a crystal clear image, with a field of view of 40ft @ 100yds, a comfortable eye relief and impressive optical performance. The magnifier is built on a rugged aluminum frame that is rubber armored, with optics that are 100 percent waterproof, shockproof and fogproof (nitrogen purged) for extreme durability. There is an adjustable focus on the ocular ring to ensure clarity for all shooters. The Lucid 3x Fixed Magnifier is compatible with all red dots. 3x magnification Compatible with any red dot sight Aluminum frame Multi-coated lenses 30mm tube Adjustable ocular focus 100% waterproof 100% shockproof 100% fogproof (nitrogen purged) Magnification 3x Field of View (FOV) @ 100 yds, ft 40 Waterproof / Shockproof / Fogproof Yes Weight, oz 6.5 Price at the time of this video: $189.00 Purchase at: http://bit.ly/sRrg2E You can see quality close up photos here: http://on.fb.me/tXH9Xy