Finally got to play with some friend's AR-15s - never fired an AR before. While absolutely a blast (at TCGC), I didn't expect the trigger pulls to be so 'rusty.' Fired off an M&P, and a Daniel Defense at few times. The M&P had the worst trigger (from my perspective). It felt like pulling a door with stiff rusty hinges closed. There were also a couple of guys with ARs there, I fired theirs also and found them not much better. With the AR firmly planted into sand bags I guess it is OK, but freestanding it definitely made me off target at the last second (need to work on form). They said that is just the way they feel. As a rookie, I can't really argue. All I know up to this point are my 22s and they all have smooth easy to engage triggers. Did some looking around and found Timney triggers are available as 'drop ins' for <$200. Has anyone installed these? Are they easily to install? Are they a big improvement? Is there something that can be done in the meantime when I buy an AR like oiling it up a bit? Thanks a lot.