Buffer weight still depends on the rifle, not all Noveskes will be the same so H won't be optional for all. Have you ever said if this is midlength or carbine gas length?
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
You'll remember the quality of a gun long after you forget how much you paid for it.
US Army 1966-69, VFW Life Member, Retired Geek