EOTech Holographic Weapons Sight has 1,000 continuous hours (lithium) at nominal setting 12; 600 continuous with AA alkaline. Fogproof internal optics. Submersible to 33 ft depth. Buttons on left side to work specifically with magnifiers. AA Battery model (supports Lithium or Alkaline). Standard A65 image (65 MOA ring/1 MOA dot reticle). Raised 7MM base.