I saw on an episode of future weapons an open bolt version of the M4. It was supposedly being made for the Marines to have a squad auto. weapon that didn't look like anything more than any other M4. Anybody know anything about this? I was curious to know if it was piston or direct impingement? I thought it was called and LAR? I tried a search on the web and didn't find anything. I thought maybe somebody here would know something about it. :confused:

