Build List - Suggestions?

[Macht]

I'm looking to build my first AR. I've done a fair amount of research and tried to put together a complete build list. If I've missed something or I'm just making a dumb pick on a component I'd like to know before I start buying things. Any and all feedback would be appreciated.

Upper:
Precision Firearms Neptune II-B upper
SilencerCo Saker Trifecta muzzle break

Lower:
AXTS AX556 w/45 deg safety
Geissele DMR trigger
Larue A-PEG grip
Magpul UBR stock
JP silent captured buffer setup
Precision Firearms LPK