I picked up a Vortex Spitfire 1x during the most recent Cabela's sale. I'm very impressed with it so far. The clarity and sharpness of the reticle is awesome. The only thing that I'm disappointed by is that it's apparently not compatible with the ACOG mount due to its mounting screws being off by about .25,inches. I'm toying with the idea maybe altering an RS Regulate ACOG mount, but would hate to potentially waste the $70-$80 dollars.