Tactical Rifleman got this video in which the Karl gives his opinion on best sights for the Glock Pistol that can give you and understanding that some sights can be good for certain purposes... "This week, Karl takes us through his opinion on Glock Sight Upgrades. We all love Glocks because they run all the time. That said, the stock sights leave room for improvement. Even if you get the factory sights with tritium upgrade, the front sight still doesn’t jump out at you.  So, Karl shows us a few options. Some are better for competition; some for combat. Choose what matches your mission. 

Yes, there are dozens of brands out there. Most are good and a few are great. However, there are also some really cheap brands out there. Stay away from those. As with all guns and gear, we tend to preach for people to drop the extra dime and go for “Mil-Spec.” If it is tough enough for the US military, it will most likely also serve you well. Looking forward to your comments.

Strength & Honor,

TR."