I have three Daniel Defense LPKs and like each trigger. Pretty smooth and break nice but they are milspec so at least 7lbs.
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
You'll remember the quality of a gun long after you forget how much you paid for it.
US Army 1966-69, VFW Life Member, Retired Geek