BEST M4 POSSIBLE?

[Genaric]

Thanks to all of you, for your feedback and concerns. I'm probably just going to buy that RRA. The dealer already recieved the order for it, so unless I buy it it's going to sit on his shelf and gather dust, or maybe get snatched up by someone else.
JUST TO CLEAR THINGS UP:
I don't expect 7 or so guests anytime in the near future, I was just saying 'what if', I'm just looking for the best tool for the job. I live in the suburbs, it doesn't get much safer than that.
an to whom it may concern about 'shooting would-be criminals in the legs':
Yes I know the consequences of my actions. I've been in and out of court more times than the judge. (not a good thing, but it's true.) If I shoot someone in the leg, it's to drop them, god knows what I'll do with them later.
SORRY FULTONCOSHOOTER for not putting LMT on the poll, but I was gonna buy one of these 4, I'm sure LMT is great for you, but I'm looking for something that's great for me. To each his own, right?

[Thekatar]

If you are on internet forums bragging about shooting people in the legs and how you've been in and out of court, you are in serious need of attitude adjustment.

Shooting another human being is not a game. You shoot if your life is threatened, and you shoot center of mass and you shoot to stop the threat, not to wound them so you can torture them later.

If you have been joking, it's not funny. If you haven't been, you shouldn't own a firearm. You might also consider a psychiatrist.