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Both sights are excellent choices. It was a tough choice for myself as well. I ended up going with the XS Sights.

The XS Sights were super easy to install. They come with a no-mar  punch to remove the Factory rear sight. The Rear XS sight didn't even need to be filed and just slid onto the slide without any problems. The factory front sight can be popped out easily with a flat head screw driver. The Big Dot is tightened in place with the included hex wrench.

If you already haven't watched the Glock XS Sight installation video, here it is: XS Sight Installation

Nathan

ETA: I plan on getting the Ameriglo's for the next Glock I get.

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They all install the same way, but I would recommend getting a good small file set.  I had a set of big dots that required some filing.  I also file a very little bit off my Ameriglo's...more so to smooth out the friction area to make it slide in easier.

A vice helps, good punches and a hammer.  Thats it.

Both come with front sight tools, but Ameriglos don't come with loc-tite.  XS does.

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The XS Big Dot is awesome for cqb and is very fast.. I was going to go with one untill I came across MeproLight night sights. They are the best sights you can get imho. But like I said if you are not to worried about groups and if the gun is just for home defense then the XS sights may be for you.. not saying you cant group with big dots but they are not made for that. Anyway after checking them out I felt Meprolight night sights where just better for me, as a matter of fact I just got back from the range with my Glock 17 meprolight's installed and they are the best I have used.

One fast Q, why don't you just have the shop owner install them or you getting them online?

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Thanks for the reply.

I indeed watched the XS video by both XS and Tactical Solutions, but when I search for any installation videos for Ameriglo I come up with no hits. I can't imagine it is much different.

Can you expand a bit on what you like and don't like about the XS and why you are thinking of going with the Ameriglos the next time around?

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Thanks for the reply.

I indeed watched the XS video by both XS and Tactical Solutions, but when I search for any installation videos for Ameriglo I come up with no hits. I can't imagine it is much different.

Can you expand a bit on what you like and don't like about the XS and why you are thinking of going with the Ameriglos the next time around?

I'll give you the short version:

XS Big Dots are most useful when using a threat focused sight picture, meaning your focus is on the target you are trying to hit rather than your front sight. With that kind of focus a big lollipop on the front of the weapon can help you get a very quick and very useful sight index for quick, close range work.

The snag is that a threat focused sight picture is not always appropriate. The farther back you go, the less helpful a threat focused index will become. At some point (it varies for each individual) your ability to make good shots with a threat focused sight picture is essentially gone. At that distance you'll need a traditional front sight focus to make an accurate shot. Many find that it is difficult to make that kind of shot with the lollipop front sight. At 20-25 yards sight alignment becomes critically important if you are going to hit anything, and it can be difficult to properly align the XS sights at that range.

While many shooters (including me, and Todd who is a lot better than I am) find it more difficult to use XS sights at longer ranges, they also find that they can use traditional sights with the same speed and accuracy using threat focused sighting, especially if you take measures to make the front sight stand out. (Like the reflective orange tape Todd uses, or the yellow model paint I use) So that means that the XS sights don't offer those shooters any advantage up close, but results in a penalty at longer ranges.

Now everyone doesn't find those facts to be true. Sights, in my opinion, are a lot like pistols in general...intensely personal and what is great for person A might not be so great for person B. Still, whenever XS sights come up usually the fangs come out as some people insist that those who say they aren't as accurate at longer ranges simply don't know what they are doing. The simple reality is that a LOT of very well trained guys don't find any real advantage with XS sights up close but find them to suck at longer ranges. It's not lack of training or ability...it's just that they've tried them and found them wanting.

If you have the money to spare, it would be useful to try out some different sights and see how they work for you. I would heartily recommend the Warren sights as I use them on all my carry guns now. While one size doesn't necessarily fit all with sights, I do think it's telling that you don't see many competitive shooters using XS sights. They're buying the hell out of Warren sights, though...

As far as low light goes, I prefer Warren 2 dot night sights for low light use.

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The install for sights on a Glock is usually very easy. If you use Glocks as your go-to platform I suggest investing in a sight pusher for the rear (MGW's are good...make sure you get the one that will do "tall" sights, as it will do ALL Glock sights and not just the factory height sights) and a sight tool for the front sights. (Brownells has several options for the Glock front sight tools) The stock plastic rears will drift right off...or alternately one good whack with a rubber mallet usually removes them. The front sight pops on easily. The new rears can be drifted in easily using a pusher or a punch. I prefer the pushers because if you get a sight with a tight spec you can damage the sight and/or the tritium elements if you use the hammer and punch method.



Here's my 2 cents on the XS sights:

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I've just put XS 24/7 bigdots on my 23.  Very easy.   Exactly like the video on XS's website.  I did have to do some fileing to the rear sight.  My front sight was bolted on, so I couldn't just yank it off.  i used XS's included tool to unscrew my Glock front sight.

Most of my practical training is with tape over the sights.  But I can allready see that in cercumstances where I need to aim, 15-35 yards, they are a bit faster than anything I've tried so far.  I haven't noticed any loss of accuracy out to 25 yards.   I can't comment past 25 yards because after that range I'm minute of man with any pistol.

The Warren tacticle 2 dot sights were my second choice.  I didn't want to try Straight 8's or the Sevigney sights because the standard type rear sight blocks too much of my FOV.

Thats why I like the XS sights, everthing thats your target sits visable above the rear sight.  I just concentrate on the target for less than 15y and on the front dot for more than 15.  Within reason, dif techniques for dif senarios.