Alright so right now I have a CMMG M4 w/16" barrell and all magpul furniture and an ACOG TA-33.  I'm looking to put something together for a little bit more of a precision rifle upper that will be used for hunting and as a DMR style rifle that will fit my AO/POU in a bug out situation.  The CMMG M4 will be converted to a more of a home defense build.

Here is what I'm looking at for the upper:

BCM 20" M16 Government Upper

Spikes Tactical Nickel Boron M16 BCG

BCM Gunfighter Charging Handle

Troy Industries Drop In M16/Rifle Length Battle Rail


I'll probably put the ACOG on this upper and and put a red dot on the CMMG.  Eventually this upper will get paired with a Spikes Tactical lower.

Any suggestions on improvements?

I would skip the $225 BCG and just go with a standard BCG from bravo for almost $100 less, other than that looks like a well thought out upper.