For me, it’s four guns with optics, five guns with irons only (full disclosure, two of those are small revolvers). Lifelong astigmatism, eyes getting older (but a little better since getting rid of the cataracts in both eyes), have pretty much always made focus on front sight while trying to include rest of sight picture a little challenging. And I never could master the art of two eyes open iron sights picture (astigmatism pretty much makes that impossible). I love the ability to keep both eyes open using an optic.
Optics have helped my shooting tremendously. That said, I can use irons if necessary, just won’t be a pinpoint shot like with an optic…100% sure I’d still hit what I was shooting at close to where I aimed.
For my guns with optics, I really don’t even consider the irons back ups. If my optic fails, I will use optic window to center on target in a SD situation (if I even have time to aim at all). I would not shoot more than 10 ft or so like that.
Well, unless it fails like this - yep, optics fail - I lived it, luckily at range. Pretty sure this wasn’t user error…
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