Fits the bill at an amazing price - Rise Armament OPMOD Hex-C AR-15/AR-10 Enhanced Rifle Trigger

This is the first drop in trigger kit I've ever purchased and it dropped right into my Combat Armory lower with no issues. The trigger itself is pretty light and smooth, and the reset is crisp thus far. All of this is just me dry firing the lower, so no range time as of yet, and I'll update the review if things change once I'm on the range, but this is a good trigger. I'll probably get another one or two for future builds. Be sure to use a little bit of blue loktite on the threads though to keep everything in place.