Hello every one !! Let me start by saying that this forum has help me out a lot on my firearm decisions so please help me out on my first AR-15. I am not looking to built a AR but I am trying to decide between a Bushmaster carbine or a Smith and Wesson M&P15. Both are currently on sale where i live. Yes am strickly on a budget! So lets get down to it.
I want a AR15 for deer hunting, home defence, and as silly as this sound, I want it to be combat efficient for the big zombie apocalypse

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So both of these rifle are going at 700 where I live. The Bushmaster comes with a Bushneil red dot and two 30rds mag and a Hard case. I have herd nothing but good things about the bushmaster, All though its is super light, it still troubles me that the frame is polymer.
The M&P15 comes with a 10rnd mag and has on stock iron sites. Even though the busmaster seemd like a better deal, I just love the metal frame on the M&P. PLEASR HELP ME!!! I really don't know which one to get but My heart is leaning to the M&P15