Hello, I have always been a bolt gun guy. I shoot for fun and hunt most seasons. I'm fixing to start build an AR for my predator hunting gun. I going to start with a spikes tactical lower. I want an upper with forward assist for sure. A 16" barrel in something decently accurate 1-9 twist is what I'm leaning towards. Fixed buttstock wither solid or skeleton. Want to stay light and decently accurate. Any input would be greatly appreciated. Trying to stay around $800 total without mags or scope. Flattop build. Thanks in advance.