AT3 TacticalAlpha 2 MOA Red Dot Sight with Shake Awake - Absolute and Lower 1/3 Cowitness Mounts

Glass is clear, works perfectly, easy to zero, but not sure how I feel about it on a 556, on a 9mm or 22, it is perfect, quality is on point.

Update: Received a replacement and TBH, my problem may have been user error because the tab, or film that covers the battery in transit was "stuck" to the terminals so nothing came out or off of the battery. So, I really like this now that I've seen it powered up. The reticle was surprisingly clean. I have a decent astigmatism and lots of red does are like blurry stars. This one seems a bit cleaner FWIW.I love the windage and elevation knobs, which are very easy to adjust w a flathead.Finally, it may be simple, but the shape of the lens caps mean I don't mistake one for another red dot. All of the others are round and its a bit tough to be sure you have the right one on the right unit when you are at the range with several different units at work. The shape of the rubber covers seat perfectly to the unit. Looks like a building or barn shape. Its the little things.So far, I really like it and I have several Siig Romeos bc they're such a great performing value. This may be my new value red dot. Gotta go check out the rest of AT3's catalog.--------------------------------------------I'd been looking forward to this red dot after some solid reviews and research everywhere. Most review sites I trust held it in high regard for what it is. I will update this review if I get a working unit. I followed the instructions, enabled the battery and it didn't light up. I tested the battery, inserted a new battery, no red dot. Frankly the threads on the battery cap were not very deep and the cap was tight after less than 1 full turn so I was thinking it wasn't making enough contact/pressure, but that can't be it because the cap contact for the battery is a spring.I am returning to Amazon and since they won't exchange it for me, I may look a little more for a different red dot that's affordable and well regarded.

The AT3 Tactical Alpha is a well-built optic with a crisp green dot, offered at a very affordable price. The build quality is excellent, and the performance is solid. However, I personally found it challenging to acquire the dot through the tube design, which I anticipated might be an issue for me. Despite this, AT3's customer service has been exceptional. They went above and beyond, even recommending other optics (including those not from their brand) that might better suit my preferences. Highly recommend both the product and the company for their outstanding support.

Very nicely made product. Installation was a breeze. I still need to shoot my handgun to confirm, but so far, I am not disappointed. I can’t wait to hit the range and try it out! I only wish you didn’t have to use an object to adjust the elevation and windage. That is probably my only complaint. It does adjust very easily.

for such a nice optic I am disappointed in the cheap lens covers, but I am still getting another on for my suppressed .22 Savage

Junk,. Sending it back. No red dot on any setting. Replaced battery and it still doesn't come on, on any setting.

I really like this red dot. Didn't much time at all to get it mounted on a 10/22. Adjusting with a boresight and adjustments on windage /elevation I had this on target within 30 minutes. I love the wakeup, auto shut down and various settings that this thing is capable of. The view is very crisp and crystal clear and lightweight. It has so far earned its 5 star rating in my opinion.

I like the looks of the red dot, I like the shake awake option, I like the options on how it can be mountedI liked the price and the video they have on it that actually sold me on this red dot. I havent had a chance to use it yet ,but looking forward to it soon.