Does not sit flush is 2mm to long - Armaspec 90 Degree Full Throw Ambidextrous Safety Selector

Tried on multiple lowers, sits out 2mm and does not sit flush. Very upset. Trying to get hold of armaspec directly to rectify, as I am out of the return range. I am not sure if this is how it is supposed to be or it is a part the skirted quality control. At this moment I find it worthless.