I currently have a 16inch AR with a pencil barrel and know that putting a suppressor on something like that is going to impact POA/POI.

Going to build an AR with suppressor use in mind. 14.5 inch with a Surefire Warcomp (looking at a Surefire SOCOM RC2) pinned to get to a 16inch barrel length.

Next decision is what profile barrel to get to reduce the amount of impact putting a suppressor on the end will have?