greg vess or anyone else....SBR under 10".... I currently have a crappy 7.5" build; cheapest barrel I could find at the time...I'm wanting to upgrade....thinking about changing things up and would like to stick to 7.5", maybe 8 or 9" no longer. Best barrel for accuracy? DI or Piston? Should I just replace my crappy barrel or trade my upper for a PDW piston upper from Adams Arms? I'm not worried about the price, I want quality......Go! Thanks in advance.
Someone correct me if I'm wrong but I think you had to put the length on the form, and you have to always be able to put it back to that length? If you listed 7.5" barrel on the form, you have to have a 7.5" upper available.
However, I doubt they'd ever check.