The Liberty ll dot sight, with its innovative design and construction, takes your shooting experience to the next level. Optimized for competition and long gun use, Liberty ll includes features such as a 3 MOA dot or multi-reticle emitter, a slim profile, top loaded battery, durable body, and an expansive 24mm window. 3 MOA dot or Muli-Reticle emitter. Brightness Adjustments: Up/Down digital buttons. Shockproof G forces: 1500 G Force. Battery Type: CR1632 (INCLUDED). Max Battery Life: 50,000 Hours. Dimentions: 1.86″x(length)1.20″ x(width) 1.17. Weight: 1.52 oz. Lens Tinting: Multi-Coated Ruby Red – Red Dot. Lens Coating: Fully Multi-Coated/ Anti-fog/ Hydrophobic. Mount Type: Universal RMR footprint. Windage/Elevation Movement: 45 MOA/ Total 90 MOA Range.