Integrated QD base, 2 MOA dot, 1/2MOA adjustments, 8 hour auto-off, 50,000 hour battery life on medium brightness setting, and uses standard CR123A batteries. All for $169.
https://www.primaryarms.com/Primary-Arms-CR123A-Battery-Red-Dot-with-8-hr-auto-p/pacrs.htm
https://www.primaryarms.com/Primary-Arms-CR123A-Battery-Red-Dot-with-8-hr-auto-p/pacrs.htm