Last year i purchased a firefield red dot sight from optics planet,it did not work,optics would not take it back,sent back to manufacturer and got another,which did not work,sent that one back and got a third one which also did not work correctly. spent more in shipping then i originaly paid for the sight. left a bad taste in my mouth. Can any one recommend, from experiance, a good red dot sight for a ruger 22/45 that will cost around $50.00 give or take a little?