Looks cool but preforms poorly - Zenit PK-06 Red Dot w/ Weaver Mount

I have owned two of these optics and both have broken in less than 1k rounds through a pcc. The first on stopped holding zero after 300 rounds and the replacements windage screw crept its way out and was lost in less than 100 rounds when it was supposed to be locked. If you want a cool looking sight for Instagram go ahead but if you want a practical red dot look elsewhere