Hey All - I acquired a 95% built 20" HBAR AR through a trade, but it still needs the DI rod and the full FCG installed, and I (very unfortunately) don't have a skippy what I'm doing...anyone suggest a reliable g-smith (or helpful forum/youtube video/forum member) that could help me complete this thing? Looks like it'll be a great shooter, but right now it's gathering lint.

Any help would be appreciated...thanks