My Buckmark reflex has been in service for 5 years, still going strong. In the gopher patch, and plinking. Pretty good value. When or if it dies, I will get another.
I'm surprised, because this design seems to be passed around and rebranded by a number of different brands. I bought one as a Firefield from Cabela's and it was utter crap - seemed fine when I was bore sighting it, but then on the first trip to the range it was barely bright enough on the highest setting to see, and went downhill from there. About the only good thing about it was Cabela's returned it with no hassles whatsoever, and I got a Vortex Crossfire red dot instead.