Whether you build your own ARs or buy them off the rack, there’s one part that’s almost always upgraded … or at least one part that almost always should be: the trigger. It has gotten to the point that many lower receiver parts kits are not even shipping with the fire control group anymore because they know people will upgrade them.
Mil-spec triggers are fine for new or casual shooters who probably shoot their rifle once every few years. If you’re a true shooter who appreciates accuracy, wants to shoot faster or simply enjoys shooting ARs on a regular basis, the factory trigger might be good, but it easily can be better.
To clarify, we’re really talking about more parts than the trigger. We’re looking at the whole fire control group. This is the trigger along with the hammer, sear, disconnector, associated springs and even the pins that hold them in place.
If you’re building from scratch and following a typical instruction manual, adding a new trigger is simple. Fitting one
