That's very small. I'd be interested how it withstands a drop test. Docter sights have been around for at least 15 years. Historically they have been fragile and never seem to have caught on in the US, at least not in the way the RMR or Leupold did.
If there's one thing I've noticed about the firearms community is that it tends to be pretty objective. Produce a good product, people will hear about it. Produce something that only look good on paper, people will drop it and move on. It's a banner example of continuous improvement. Red dot sights seem to follow a similar pattern. Everyone knew about micro-red dots for years but they didn't catch on until Trijicon did it right. And now they're all the rage.
What I'd like to see with this sight is the typical YouTube "toughness test". Find a mildly-overweight middle-aged bearded guy dressed in either something out of Tombstone or in some variation of earth tones and cargo pants. Have him stand at a range, do an intro speech about how he loves his patrons, then beat the ever-living bejeezus out of some gun, optic, or knife. If he involves his truck or actually shooting the item being reviewed, then we know he's serious. Through this scientific form of examination we've somehow over the last decade-ish evolved AR-15s, Glocks, flashlights, and knives to be some of the most reliable mechanical devices.
So when Billy Bob Tactical drop kicks one of these things attached to the slide of a Glock, picks it up, and it still functions then I'll start taking them seriously.
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