This has come up a lot lately and there does not seem to be a lot of good info out there,except from the folks who want to sell you a $500 optic, $150 of machine work and a $125 holster that will let your optic hang out the front without any protection, so the glass gets scratched and dirty.
There is however, a cheap way to give it a try without a big investment. That is a cheap dovetail mount and a cheap, $40 optic. The $700 outfit can come later if you feel you need an optic on your pocket gun. They are fun for the range.
Dovetail mounts hold up to recoil just fine if they are the type that has a screw to keep them from slipping. For example, the Rossi Model 92 in 454 Casull, a lever action, along with the smaller 44 mag, 45 Colt, and 357 lever --all of those have been using the dovetail to mount optics for years.. My 454 is loaded up to 65,000 psi. My everyday loads are above 55,000 PSI. They recoil about like a 3.5 inch 12 gauge or my 300 Weatherby. The dovetail holds the optic. Now if you put the optic on a slide like a 1911 in 10mm, it is going to slam back and forth. Going to be hard on the optic, but it is not likely to break off.
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Bring your 1892 levergun in to the 21st century. For really fast sight acquisition in low light conditions this Mini red dot reflex sight sits on the single slot picatinny rail that mounts in the existing rear sight dovetail. This red dot reflex sight is designed for pistol mounting so it’s small and sets low for a good cheek weld. It'll surely help ya hit what you're aimin at.'''''''
So, the dovetail strength is not the issue. Your 10mm is only about half that power and your 9mm even less and the 45 Plus P is still in the 21,000 PSI range, a third of what the Rossis will take. You biggest risk might be breaking the actual optic if you dropped it or fell on it.
On a 1911 or most plastic semi autos, the dovetail mount puts the optic about 1/4 to 1/3 inch higher than the fixed sight. To me it is just that you get used to. My background is military and law enforcement, with a handgun I am shooting both eyes open and moving.
I normally do not want an optic on any handgun, on a long gun sure. And on a gun for shooting games, sure, lots of fun, but never on a fighting gun for me. For my civilian EDC I do not expect ever to shoot in defense more than 30-40 feet and then only the front sight matters to me.
Now for just plinking and shooting fun and teaching kids to shoot, they are great and the height does not seem to matter. I have them on the Ruger Charger , Kel Tec Sub 2000, an AR and some other 22s that we shoot for fun. I do not notice the height at all. I think the only people who worry about that are folks who need optical sights to shoot the smaller carry guns, like the cute little Hellcat and those smaller type guns.
I was a CCW instructor starting in 1996. What I learned early on is that the best 2 tools for shooting newbies to shoot is a (1) suppressor and a (2) laser. The suppressor does away with all the noise and flash so you can concentrate on the mechanics of employing the gun. The laser then took out all the required aiming and lining up the sights and holding that gun on target. Today the little optic has replaced the laser and works very well for entry level shooters. The laser will always be better because it allows you to shoot around corners, but with the dot, you have to get just enough eye behind the gun to see the dot on the place you want the bullet to go. The laser does not require you to even see the gun, only the dot.
. SO the current optic fad is fine by me, makes it easy for everyone to put rounds on target, and that is what matters.
Last the little dove tail mounts are cheap. I have seen them for $20 or so and have a couple. So just buy the kind of optic that has the standard mount so it is adaptable to either the dovetail mount or milled into the gun mount and give it a try. If you have a gun like the 1911-22, or the Sig Mosquito of any of those, the dovetail optic is a cheap and ez way to get into optics. I bought 2 or 3 of the little cheap optics like this one below about 7-8 years ago. They all work fine, all these years later. Recently I bought some of the newer micro dots and they are fine as well and much smaller which is needed for the handguns. I doubt I will ever put on on a carry gun, but that is just me. Food for thought. Let us know what you do.
Oh yea. I like the new green dots like the one on the right, and the cheap ones give you options of aiming reticles. I have one on a 22 that is a smiley face. It has been known to shoot skunks more than once. Enjoy.
Not everyone is going to "carry" optics, it is a fad, people with poor shooting skills will find them very helpfull and that is all that matters, when it matters. So, if it works for you, go for it. I have only used them on Glocks for fast shooting and I prefer to stay with might sights, YMMV.