Millett qc issue - Millett Multi-Dot SP Electronic Red Dot Sight

This is my second purchase of a Millett Red Dot. Had to return original dot due to defect in lens, bottom half had red line thru it. Replacement was reordered and this one works OK but the quality control is lacking. In side of tube you can see the sealant hanging from one side and other QC issues which my older Red Dot does not have. I would not purchase another one of these dots.