First, I ordered this product for my mossberg 590a1 retro grade in the middle of the night.It was shipped out within 24hrs. And I received it within 3 business days to Michigan. This means opsol is on top of their shipping service. Second, the mini clip 2.0 flex fit like it should.Meaning,no edges were protruding out.all sides were flush to the receiver,not sticking out or sunk in. All sides were equal to each other,not off center. This says alot about quality control.When’s the last time you seen a piece of rubber or plastic that didn’t have burrs or lines from a press,this has none. Thank Opsol for making a quality product and at a good price!!