The 1x scopes are actually 1.5x. !x will appear smaller to the person looking through it, 1.5x you see what the unscoped eye sees.
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+1 on this
I think some of the red dot or Holo sights might be a true 1x, but as Axtell pointed out most scopes start at 1.5x. Even these can show a lot of barrel and the front sight, which with both eyes open and for fast shooting I can live with. But the variables are nice to crank up just slightly to eliminate this if it distracts you.
