I am a LONG time lurker and have some insight on this. Yes, they do mount M2's on HMMV's, MK 19's, M249 (SAW), M60's, and M240B. I speak from experience because I am a MP who was in Baghdad from June, 2003 to June, 2004. While there I was a Platoon Leader and saw numerous HMMV's with all these...