Don't know this this slipped by everyone, but welcome! Judging by your lower I think you're set (winterized trigger gaurd). You should have the gen 2 trigger and it looks like you have all the other goodies (ambi safe, upgraded bolt catch). Love the black and tan action, I have almost the perfect mirror opposite of that gun, although it looks like you've got the 18.3 hbar (mine is the 16).....I've always though the 18's looked killer.
I've had better than average luck with L's. Most turn in from 1.5 to 3 MOA. A few guys have absolute laser beams.
We're always interested in ammo preference and accuracy, we never turn down a good thorough range report.