Designed for rifles, shotguns, and other long gun applications, this AEMS PRO X2 Advanced Enclosed Micro Sight from Holosun features a multicoated lens for clear targeting—and an antireflection device on the objective lens that prevents flashing sunlight from revealing your position. You can choose a 2 MOA dot, a 65 MOA circle, or both, with 12 brightness levels (including four compatible with night vision gear) that can be adjusted manually or automatically. Built with a durable aluminum housing, the sight comes with a lower 1/3 co-witness Picatinny mount with a 1.63" dot height and is compatible with magnifiers. One CR2032 battery delivers 50,000 hours of battery life.