Well I endured six grueling stages with a Glock 19 and optic the size of my dick yesterday. LOL All in the name of R&D for you people.
I have to say the optic performed beautifully. Even under stress the dot was right there at every presentation, auto-brightness feature performed perfectly (it was a ridiculously bright south Florida day) and I can't say I have a single complaint about it to this point.
I will say shooting a G19 on six stages for four hours affirmed I will never do that schit ever again.
15 rounds. Get the fugk outta here. LOL