Long Range Shooting School and my Grendel?

[Hooz]

I like the Troy alpha! What I'm visioning.
Just need to mount up a bipod stud somehow!?

The Troy Alpha rails are VERY nice (The VTAC Alpha rails are even nicer depending on what you're planning to do). You can just use one of the short rail sections that comes with the rail, and then get a bipod mount something like this:

http://www.midwayusa.com/product/145921/...inum-matte

I would still suggest doing something like what wiuprof posted above due to your short notice, though. Granted, you'd only really be changing the gas block, but there is nothing worse that showing up to a class with an untested gun that won't run for whatever reason. With only 2 weeks to work with you're going to be pressed for time to order parts, get them, install them and then test everything.