Here is what I have been thinking so far.
As far as the components I was thinking of Aero Precision EPC-9 upper and lower set. Aero barrels on the other hand don't work well with hollow points from what I have read. I'm thinking of going with a 7.5 to 8.5 inch barrel.
Does anyone know of any barrels that have a feed ramp and are reliable? I have looked into Macon Armory but they are sold out. Taccom also seems like a good brand but they don't have the barrel length that I am looking for.
Any thoughts on what brand of bolt? Buffer weight? Trigger?
Any advice is appreciated. I'm totally new on this. I'd like to keep the budget reasonable.
Would be nice to hear from people who have an AR-9 and/or have built one.