Poor quality control - Viridian Weapon Technologies RFX-35 1x22mm Micro 3 MOA Green Dot Sight

I purchased this from Optic Planets Dvor website. After careful installation I turned on the sight and it didn’t work. If I unscrewed the left mounting screw a little the dot would come on. If I secured the screw back down the dot would go off. Took it off checked the battery, reinstalled it and the problem persisted. You might get a good one, you might not. Buyer beware. I don’t purchase products hoping to get a good one. Dvor was great with the return and refund. Went with a Holosun and never looked back. Good luck if you choose this one!