I would buy complete or build lower and then buy complete upper . I bought my first complete then built on exactly the way I wanted it . Heres the thing the first one I built is really cool but to heavy . My point is when your new to the AR even when you build exactly what you want . When your done it may not be what you want . My two big mistakes with that rifle were the HBAR and the YHM Todd Jerret free float rail .
I don't have a bunch a stuff hanging off of it either . The rifle is just heavy . Here are the rifles side by side . The black one was the build for $1160 , the MOE-FDE was a complete rifle I bought for $850 out the door .
I would not put a ton of money in to your first because when your done you will still be putting more money in to it . I'd work at it slow and buy stuff as you come to realize you need it . Rather then install stuff till you realize you don't need it .
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If Jesus had a gun , he'd probably still be alive !
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