I second the CMP. Are you set up to buy from them?
If not, you owe it to yourself to look into it. They have great deals on complete rifles, as well as all the parts for them (including new reproduction stocks, as was mentioned above). In my experience, the prices are better than what you'll see elsewhere.
You normally have to provide proof of marksmanship training and membership in a marksmanship organization, but your military status counts for both of those. You still have to show them your miilitary ID, and proof of US citizenship to become a member and be able to buy from them.
check it out:
http://www.thecmp.org/
For anybody that isn't military, Red Castle Gun Club is having a CMP match on May 1. Its a basic match that meets the requirements needed to sign up for the CMP sales program. Check RedCastle's website: www.tulsaredcastlegunclub.com for information.