Um...is everyone not reading Lessons Learned and After Action Reports from Iraq and Afghanistan that seem to be generally devoid of the massive complaints about the standard AR-15/M16 pattern that everyone is constantly harping on?It has been a poorly kept secret for several years that the US Military's M4/M4A1 Carbine has its problems...
Ooooh, its a gas-piston AR-15/M16 upper . Colt, Olin, Winchester, LMS, RIA, and Alan Zitta (Z/M weapons) have created gas-piston uppers, and since the first Colt/Winchester experiments in the '70s there has been no interest, and tests seemed to show that there was little improvement over the pattern as it exists. HK went and created one recently and people had so forgotten that it had already been done that it was being hailed as a unique improvement that someone had finally taken the time to do, which was a blatant lie. This review was at least kind enough to note the hard work of others before, even if it says they were all mediocre systems, not living up to the expectations of the military (which isn't true. Its simply that the Army tested some early protos and found while it functioned well and reliably, it offered no significant improvement, at least not enough to warrant replacement). Its a good idea, but its not exactly new, and it doesn't seem to be the miracle cure either, mainly because the system isn't near as broken as people would like to believe.
PROJECT MANAGER SOLDIER WEAPONS SOLDIER WEAPONS ASSESSMENT TEAM REPORT 6-03
6/10/03 Smalls Arms and Individual Equipment Lessons Learned
20 April-25 April 2003 MCSC Liason Team Field Report
However, the recoil system in this carbine is something to look at because of the AR-15/M16's straightline design. The fact that the bolt-carrier has been reworked to assist in keeping the weapon level even during firing, and that th recoil buffer has been substantially imrpoved are really interesting upgrades.