hey guys! I am looking into getting an Ar-15 I know there are millions of threads on this topic but I want what's best for me and my needs. I have never owned an Ar, just shot one or 2 before. I am just looking for a reliable weapon and something to bug-out with or protect my home with. I was looking at the S&W m&p 15 sport, looks nice but doesn't have a dust cover or forward assist... its that a big deal or not??? also don't know if I should build my own or just buy one, I don't want to mess it up, and I want it to be reliable. my budget is not a penny more than $1,000 Thanks in advance!!!!!