Fast way to ruin an expensive slide! - Tyrant CNC Sig Sauer P320 Takedown Lever Pistol Slide Parts

First off the o-ring is too small and holds no retention in any frame I tried. (OEM, WC, Icarus) I contacted Tyrant and they sent me a new one that is the same size. They don't understand the purpose of the o-ring at all.

After installing the first few racks wiped the finish off my Spectre Comp slide. The take down lever sits on the slide once installed. Had to grind a bunch off the back to even get it to work. For $45 you would thing the part fits and functions but the specs are terrible. Zero testing and quality control.