I have been spending a lot of time on the mower lately and sometimes when I am lost in my own head the good idea fairy hits and I am coming here to see if my thinking is right or if I am missing something. I am looking at setting up what would be considered a general purpose carbine, probably leaning more towards home defense, but would likely be used for small game hunting and longer range plinking fairly frequently. I self admittedly have next to no experience with optics other than shooting a handful of rounds through a buddy's aimpoint and I had an eotech for a while, I have Daniel defense fixed iron sights on my duty rifle and that has been what I have trained and shot with. I see a lot of talk about variable powered scopes for general purpose rifles and other uses and I just do not see the point. It seems to me that you would either have it set on 1 or maxed out and if you needed to make shot you are going to take it wherever it is currently set at and you would not have time to switch. This made me think you never hear much about the 3x fixed optics, you could accomplish cqb just fine with one and still be able to see better at longer ranges without the worry of having to adjust anything or flip up a magnifier. Is there a reason nobody seems to use them? what reliable options are available? I know trijicon Acog, Burris, and primary arms all make 3x optics, the Acog would obviously the most robust, but would Burris or primary arms stand up to hard use? Sorry for the long post and I am terrible at typing, tell me where I am wrong and what I am missing