Was cruising around the internet today, when I found out the XM8 was cancelled in October of last year. (Yeah I know, I am "behind the times.") I read the post that FlyNavy started titled M16 v. M4 v. what?, but nobody really talked about a replacement for the M16 and M4. I was wondering if Uncle Sam was still looking for a replacement for the entire system, or maybe converting them to 6.8mm.