Burris 300236 Fastfire III with Picatinny Mount 8 MOA Sight (Black) Convenient power button with three levels of brightness and an automatic brightness setting Tool-less wind age and elevation adjustments Low Battery warning indicator 8 MOA Dot Reticle Tool-less wind age and elevation adjustments Top of sight battery access Convenient power button with three levels of brightness and an automatic brightness setting Low Battery warning indicator 8 MOA Dot Reticle Tool-less wind age and elevation adjustments Top of sight battery access Convenient power button with three levels of brightness and an automatic brightness setting Low Battery warning indicator