[Taz]

Tried 2 on a rifle, and both went back due to tiny eye box. Having red dots on a slide is even more nonsense in my book, let alone on a carry gun.

Another issue with them: get some dirt or lint on the light source and you'll need a few to figure out what's going on. Enough time to be 6 feet under at the end. No thank you.

Not sure about nonsense, but there really are a few additional things to consider when using a dot. Pistol or carbine is irrelevant. It’s another failure point that you need to honestly consider and decide if the juice is worth the squeeze. Shoot long enough and poop will break. I’ve lost front sights off of 1911’s, HK’s and Glocks. Cracked extractors, broken springs, cracked feed lips... It’s why you do a detail strip every few months and do a detailed inspection of parts and pieces. To try and minimize the possibility of your gun going belly up at the worst possible time. Same goes for optics. When you swap batteries you do a detail inspection of the optic. Dents, chips, cracks, bent contacts, compressed seals, corrosion signs on contacts, weak contact legs, contacts that have lost spring force...

I have carried a dot for a bit now. RMR to be specific. For me the and my eye sight, the RMR is perfect. No focal place shifts means I can see target and sights which means I’m faster on target and more accurate. My eyes just don’t do the quick focal shifts anymore. Heck with my contacts near focus is impossible. So seeing sights is out. With glasses I’m hunting for the right zone to either see the target or sights. Very slow.

I’ve had lint build up on my lens, but not on the emitter... yet. The RMR has a pretty hidden emitter so lint may not be an issue. Water might though. Never had it mess with me, but then I’ve yet to shoot in a torrential downpour. Aimpoint has a solution to that dilemma now, so I assume others will follow suit.