I'm upgrading one of my AR's, new scope and things. I need one more dot for the 45* mount. I'm not spending Trijicon or Leupold money, so it's budget time. Bushnell has a dot and so does Swampfox, I think they're new? Vortex and Holosun Chinesium are 300$ plus. These two Chinesium are 150$ish. Anyone have or try either one?????