Good co-witness mount required lowes visit - American Defense Manufacturing Vortex Spitfire 3x Mount- Co-Witness

This is a solid little mount and seems to clamp down tight to the rail with some minor adjustments. What I liked least and couldn't get it to 5 stars was that the screws included were still to long to work well with my Vortex Red Dot sight 3X. It came with a long and short screw set (2 Each) but the short is about M5X10. It really should be M5X8. So with a M5 small Stainless lock washer from Lowes I was back in business, tightened up nicely. Now I need to range test it.