Holosun he507c-gr-v2 - Holosun HE507C-GR-V2 Green Dot Sight

The sight had a strong review going in but only after a few months of dry practice and less than 40 rounds experienced a failure to show the circle. I sent the sight back to Holosun per their instructions on 2-25-2021 and have yet to hear from them or even to get an email reply or phone message reply to my emails and calls. The date is now 4-20-2021 and I am still waiting on their 12 day turnaround. At this time, although the sight itself has many features and I would like to use it, I cannot recommend because of the lack of reliability and Servive.