I am considering building an AR 10. This will be my first build from scratch. Any suggestions would be welcome.
Thanks
Buy a factory rifle.
This is the ticket unless you want a specific barrel or something else extreme.
Keep in mind that the various uppers take different barrel extensions, thus possibly limiting your selections or requiring custom fitting in the event you decide to upgrade. I decided to go DMPS v Armalite back in the day when the only options were them 2 and KAC. I know JP and several others make "drop in" barrels with extensions compatible with DPMS.