This is my first post in a LONG time, but as for how good the LM4 is, it is as good as you are willing to put into it. Understand that you will not be mag dumping very often, especially in sub 60 degree weather. Understand that you will, for the most part, be outgunned by a moderately teched AEG. And understand that you will have half the ammo at triple the weight. If you can accept all this (which I reccomend, I loved my LM4), it is a fun as hell gun to use. There was a thread on the old MiA board that had a list of all of the recommended mods out of the box for an LM4. See if you can get a hold of Mosin, he had a ton of great work on his and it was nearly a 100 yard tack driver.