With a screen name of FutureTrooperNC, is the G22 what you expect to be issued? Anyway, nice choice and I am a fan of the Gen 4 in 40S&W. You might want to look at the G23 Gen 4, it's a much handier gun than the G22 for many people. I have both and like the G23 better.
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek