Good output but questionable qc - Princeton Tec Charge X Flashlights

So far the output on the light in IR and visible spectrum have been great. The modes are easy access I like that it comes with an MLOK mounting plate. My unit did not include the MLOK nut, only the screw. I happened to have a spare one of these but otherwise would have had to wait even longer to mount the light, as I had already waited 6+ months on backorder for this item from OP. The lock screw on the side of my unit also split the housing as soon as the screw was started, prior to even making contact with the mounting base. My guess is that the hole was not tapped large enough and caused this.