Long Range Shooting School and my Grendel?

[Hooz]

I agree, this is my first class and Im getting into it all at this point! Thw 20" will do me good at this point.
I read on here about optics. I went with a Vortec Viper HS.
At this point, I want to just change out the hand guard and put a free floating one on to get better accuracy and mount up a bipod.
I do not want to get into rebuiding the upper just to do so! Just want to pop the original military style off and bolt up a new one.

In that case, just get a Troy Alpha rail and a low-profile gas block and call it a day.