I’m wanting to get a clip on thermal that’s not going to break the bank since I’ve already done that with a Trijicon MK Hunter 60mm. Something that I can put in front of a NF ATACR 4-16x42 or Trijicon 1-8x28 and will be able to go up to 8x. I recently came across the PRG Defense and AGM thermal clip ons. What if any, clip on thermal scopes can be found that have very good images for predator hunting out to 350-400 yards that are less than $3500-$4000?