I am overseas right now, and I purchased 2 BCM lowers I plan on making into SBR's.  I am looking at a 5.56 and a 300BLK.  Is there any reason for me not to get a stripped BCM upper for these?  Is there any reason to go another route with another company? If so, which ones?This will be my first build by the way.  I know I have a while before my forms will come back, but I have nothing but time over here. Thank ya for your input in advance.

I don't see the point in paying the premium they want just for a stripped upper
Find an Aero Precision or something

This is what I use and they are just as good as the BCM or others that cost more.

I have several SBRs with Noveske lowers. All have Aero uppers...