【More Precise Aiming】From 3-4 MOA to 2 MOA. This updated MidTen 2 MOA red dot sight is more accurate. Unlimited eye relief allows for rapid target acquisition. The multi-coated, scratch-resistant lens improves image clarity and increases light transmission in low-light conditions. 【Enhanced Red Dot】The dot is positioned in the center of the internal tube, eliminating blur and reducing extra red light in the field of view. 【Versatile Brightness Settings】11 red dot brightness settings provide optimal visibility in any lighting condition. Settings 1-5 are suitable for dim or rainy environments, settings 6-9 are for sunny days, and settings 10-11 are suitable for intermediate days. CR2032 coin battery not included. 【Reliable Specifications】The shockproof aluminum body demonstrates extreme durability. Nitrogen-filled and O-ring sealed. Fully waterproof with a sealed housing. The matte black anodized finish maintains stealth without scratching. Nitrogen-purged fog proof: The optical surfaces inside the scope will not fog due to humidity or sudden temperature changes. 【Two Height Mount Options】Offers two height options (Low and Lower 1/3 Co-Witness) to work with any platform.