I have a Kel-tec 9mm sub 2000. I would like to put on a Red Dot scope on it. Midwest industries makes a nice scope mount that lets you still fold the gun with the scope turning around to fold...looks like a nice set up. Midwest says the Aimpoints will fit this mount, Aimpoints are out of my price range. Can any one give some suggestions on a less costly Red Dot. Thanks