Designed specifically for AR platforms, the X3 Tactix Red Dot delivers premier optical quality, extreme durability, and long battery life. Premium fully multi-coated HD glass and a full spectrum of anti-scratch and anti-reflective coatings help to maximize light transmission and color fidelity for superior clarity. The 6061-T6 aluminum body features a Type III hardcoat anodized finish for the utmost in durability and corrosion resistance. The 2 MOA dot is windage and elevation adjustable in 1/2 MOA increments, and features 6 brightness levels. Even better, the X3 is highly efficient, operating for up to 40,000 hours on a single CR2032 battery. It's the total package—for a price that's tough to believe.