HOLOSUN SCS MOS Green Multi-Reticle 2 MOA Dot & 32 MOA Circle Parallax-Free Reflex Pistol Sight Compatible with Glock MOS Full-Size Handguns - Solar Charging Sight (NOT for Glock 43X MOS or 48 MOS)

This is my third Holosun SCS MOS and I couldn’t be happier. It’s easy to install, quick to calibrate, and incredibly accurate. The green reticle is crisp, and the solar charging is a great bonus. Perfect fit for my Glock MOS handguns. Highly recommend!

I’m very pleased with the Holosun SCS MOS. It was very easy to install on my Glock 21 gen5. The optic co-witnesses perfectly with the factory sights. The green reticle is very visible and I pick it up quickly. The only drawback is the on/off function button is small. With a little practice I don’t think this will be too much of an issue.

I ordered this optic for use on my new Glock 19 Gen 5 MOS. Part of the appeal is that it is designed to fit in the channel already machined into the slide of the gun without requiring an adapter plate. This reduced the number of parts needed to mount the sight (two screws, supplied) and improved the solidity of the mount. It went on without a hitch. It matches the finish on the gun's slide perfectly and allows one to use standard height iron sights to aim the gun if by some chance the optic might fail or you forgot to turn it on. I changed out the original Glock plastic sights and replaced them with some TruGlo tritium night sights, so I'm good to go regardless of lighting. I purchased a red laser bore sighter here on Amazon to roughly zero the optical sight. I then went to the range and the initial settings I made with the laser were nearly spot on - only a slight change in elevation - about an inch at 10 yards - gave me perfect results.The optic has two different reticles: a circle that is 32 MOA and a dot that is 2 MOA. You can also use both at the same time, effectively giving you a third reticle. You cycle through the three reticle settings using long presses of the on/off button. I'm still playing with which one to use. For slow fire, small target use, the dot seems preferable. For faster target acquisition, the circle or the circle + dot works better for me. The green reticle is more visible than a red one, so I like the color. There are two brightness settings. The lower one is the default, and could be a little dimmer for my money. A quick press on the on/off button selects the brighter setting, too bright, IMO. The single multi-function button is a little tricky to use, requiring a precise push. On the bright side, this fussiness will prevent most inadvertent button presses, so it's a wash as an issue. This sight is powered by a self-contained battery that is kept charged by some small solar cells on the rear of the optic, so you never have to worry about dead batteries.Forty-odd years ago, I was a Master class competitor in PPC contests. Unfortunately, time has taken its toll, but I'm still a decent shot (and working to improve). The optic gives me groupings of about 1/3 the size of those shot using just the iron sights. The main reason is that the optic eliminates the depth of field focus problem. The reticle and the target are both in focus at the same time, something my 75 year old eyes appreciate. It seems that every shooter at the range I use has an optical sight on their pistol; now I know why.Some people like optics with several buttons to customize the sight. I opted for the simpler solution. I'm the kind of guy who usually buys the most complex accessories, but I'm finding that I either rarely use the extra features or I can't remember the control sequences needed to invoke the fancier features. Simplicity is now my friend. The Glock is a straightforward gun to shoot. With the added tritium sights, this optic, and a Glock performance trigger, I have a reliable firearm with just the needed bells and whistles. I think I'll leave it at that, and work on my trigger pull - the only thing that would hold me back from better target groups.

Works great! Feels like cheat codes once you get it dialed in. If this is your first, give yourself some time to adjust and spend some time with a bore laser or range day to make your adjustment. Bonus points for looking like a factory part on my Glock 19!

The sight is great with lots of good functions. Solar panels are a game changer for battery life. I am never worried about it being dead. The BUT in the title is I think a gasket or something failed as it seems to have got air or moisture in the glass of some kind. Other then that I would recommend

Absolutely solid product. This sits proudly on my EDC. It is awesome not to have to concern my self with battery life. I don't perform drop test or torture test, but It has stood to daily cary in multiple carry options from deep concealment to a OTW carry while in the woods hunting. The auto dimming works very well. The reticle is visible day light to low light. It can be difficult to see looking from low light to sun light no different than about any other RDS. Everyone has an opinion and I'm no guru, but I wouldn't hesitate to recommend this sight.

This optic is excellent. It's simple to use and holds zero tight. Extremely accurate. Love it.

Great for for the $. Only lacking feature is no auto shut off/wake up, but I guess that’s what it is in that price range. Need to remember to turn it off. Perfect fit for G19 mos. Easy zero operation with the attached tool. No complaints. They say few thousand hrs of battery life. Not at that point yet. Have it only for 6months, or so. It charges through solar, so no battery exchange.