Rifle armor is extremely expensive!!! I picked up a plate carrier vest just because I was sick of fumbling with mags when doing a run-n-gun course with my buddies! I threw in some pro-tec pistol plates just cuz a little extra never hurt.....
But try checking it out, these are the only cats I know of that don't require dept. credentials.
http://bulletproofme.com/
P.S. This is more of a gear related question, so don't be surprised if it is moved of closed shortly