I just installed a JP Reduced Power spring kit in my AR. The difference is very obvious. It costs about $9 and 10 mins to install (takes me that long to find the tools that I scattered around). For those of you that are going to say it may lead to misfires, I am aware of the risk. I do not defend my life with the AR so... Of course the 15 minute trigger job essentially weakens the spring for a nicer pull too.
I will let you know how it shoots.
Shot it today, much lighter, still no match trigger but better. Not bad for $10.