nice sights, hardly had to adjust first time sighting in
The Troy's Industries Iron sights are known as top shelf products. They're extremely easy to use and can take a beating. Larue and Noveske are now willing to put their names on these sights if that tells you anything.
This newer generation front sight uses a standard AR-15/M-16 front sight post. That means you can easily replace it with a tritium insert if you desire.
The sight installs very easily. It uses a large flat head screw. I'd rather a torx or hex, but whatever.
Use some blue locktite on this screw to prevent the loss of your expensive front sight.