Originally Posted by ChattanoogaPhil

I prefer single stage.

Wilson Combat TTU 4lb in my AR.
Timney 668-S 4lb in my .22 AR.

4lb is about as light as you can go and still have a trigger that is SD/duty worthy. If I lived up north and did a lot of gloved shooting I'd be using Wilson's heavier trigger. There's a lot of things to consider when selecting a trigger.

Trigger is a most important "upgrade". Take your time deciding which one best suits you and your intended type of shooting. Ammo is pretty expensive to be using a trigger that is not exactly what you want, regardless if the purchase price is a $100 +/- on way or the other between the triggers you're considering. In the AR world there's a ton of things to compromise on. Trigger ain't one of them IMO.