Re: Best .308 stripped upper?
First you need to decide which lower receiver/mag pattern you want to run as the different patterns are not compatible (i.e. - You can't run an Armalite upper on a DPMS lower and vice versa).
You can go with the KAC (SR-25) and DPMS (LR-308) pattern lowers which use KAC/DPMS/C-Products/Magpul LR-20 mags. For KAC/DPMS lowers, you can run the following uppers:
KAC
DPMS
Fulton Armory
IRA
GAP (and other custom shops like APA, etc. also make custom uppers)
You can also go with Armalite (AR-10)/Noveske (N6) lowers which use Armalite mags. For Armalite/Noveske lowers, you can run the following uppers:
Armalite
Noveske
IRA
Accuracy Systems
GAP (and other custom shops like APA, etc. also make custom uppers)
As for Larue...they do NOT sell stripped uppers to the best of my knowledge. Also, if you run a Larue 308 upper, you'll need a Larue lower as the Larue uppers don't fit 100% with other mfgs' lowers.
I am sure there are some I am missing, but that will get you in the ballpark.