Troy is good, actually one of the best. I use the Magpul MBUS2 because it's tough, ultra light and cheap. Oh, and it works.
Lots of good choices out there.
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek
My pref is for matech rear folding sight. Its got a bdc lever that works. It also is very repeatable when raising lowering over time. No left right wiggle.
Front i use the standard non folding fixed fsb. Best thing for a front sight. On firearms i dont have that i use the magpul mbus front or mi front sight if its goimg on a gas block.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent
Troy makes great sights , only problem with the micros is they sit really low when they are popped up and dont co-witness well with optics , They work well with a raised rail but on the standard railed upper they sit to low for me . Most of my rifles have Magpul on them and thats because they just work well , they take lots of abuse and are reasonably priced
If you are planning on using a red dot or optic, I'd save a little cash and get the Magpul line. They have been proven to be sturdier than alloy sights, and they are definitely lighter. Since they are just back up sights, you'll use them rarely. I usually just zero them, and RARELY shoot with them. They just plain work.
If you are planning on using primarily iron sight, look into the Troy dioptic or Diamondhead. I prefer Diamondhead personally.
__________________ Assumption is the mother of all ****ups. Know what you know, Know what you don't know. -Paul Pedzolt "Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul