Solid folding iron sights that will not fail you - Troy Rear Folding Battle Sight

I've tried and reviewed so many other iron type sights, and the TROY came out on top. One manufacturer came out close but DID NOT pay friendly with aftermarket parts (read on about the Blitzkrieg Components Tritium Front Sight post) I'm glad these Troys fold because that gives the rifle an overall slimmer profile when I store it or take it to the range. I ultimately installed them on my AR-15, front and back, for a no-nonsense, rifle that I can count on.
If you buy these sights, I HIGHLY RECOMMEND you spend a few extra bucks more and get the aftermarket BLITZKRIEG COMPONENTS CHEVRON FRONT SIGHT POST with LUMINESCENT TRITIUM/GLOWING CHEVRON. The Blitzkrieg Components post will fit right in place of Troy's stock post. Blitzkrieg even provides you with a nice tool for switching the posts. You don't have to charge the front post with your flashlight because the tritium provides you with a bright little dot to center your aim. However, if you do charge the front post with your flashlight, you will get a bright glowing chevron that will last more than seven minutes.
Incidentally, I like these Troys so much I bought a second set, with the 45-degree offset, for my AR-308 which carries the wonderful Steiner's M5Xi scope. With both the M5Xi scope and the 45-degree Troy sights, my AR-308 is good for well beyond 100 yards AND close-up shots. With exception to the particular model of the Blitzkrieg tritium/glowing front post, I purchased all the above at Optics Planet because they have fair pricing and solid customer service.