Ameriglo also makes a front similar to the Trijicon HD, with the colored ring around the front sight.
AmeriGlo Weapon Sights | Pistol Sights
With Ameriglo you can buy the front and rear sights separably and pretty much make the sight just like you want it.
White outlines with Tritium or no outlines with Tritium, or blank for the rear.
Same for the front..
Green/green or green/yellow..
Whatever, although they seem to be a little low on stock on certain items.
I sent a set to ajamesp51 to install on my Sig P329.
Front sight fills the rear better at arms length.
The rear is just black no dots.
This is what Ameriglo calls it's Hack set.
I also have a Ameriglo I-Dot sights on my Glock 19..
Lines up dot over dot..
I-Dots are similar to the Heine Straight 8s, but those silver outlines are impossible for me to see.
I bought a set of those for an XD9sc, but sold them before ever having them installed.
The Glock had stock sights on it, the Sig had Siglites that had dimmed.
I used to be a big Trijicon fan, but I've been giving Ameriglo my business as of late.
I'd trust ajamesp51 to work on any of my firearms..
He does great work in a timely manner..