Mecanik mo 3 doesn't last - Canik Mecanik M03 1x29mm Competition Reflex Red Dot Sight

I bought a Canik SFX-rival and ordered a Mecanik MO3 redot from Amazon because my local gun store did not have any in stock. After just several hundred rounds the red dot malfunctioned and would go off every time you shot the gun. I returned it to Amazon and got a replacement. After several hundred rounds the same problem with the dot going off. Showed it to my local gun dealer who agreed there was some kind of contact issue. This time I returned it to Amazon for a refund and replaced the site with another brand. I don't know if the ones that were on Amazon could be some form of knock off but would not purchase another one.