The us military carries the M4 carbine. I'd say it's a weapon of war, it's been developed for the explicite purpose of us bringing it over seas and laying waste to bad guys. The good old M16A1 (A2, A3, A4, etc), we're designed for the gov. and the military. Designed during Vietnam and constantly tweaked to be better for soliders, BY soldiers. No the only difference between that M4 and a Stag Arms version is a good old Selector switch to make it 3 round burst. Now I guess maybe we can say it's a complete different weapon because of that selector switch, but it's tough to say that since the other 99% of the weapon is the same. Ever wonder why you buy things like Buffer Tubes and it says "MILL SPEC" or "COM"? it's because it's literally patented after the same rifle we carry over seas... If I remember correctly, the orginal Ars were an exact replica of the "military "version. They were made for GIs coming home to use and is why they sodl so well because they were familiar with the weapon. So personally it's tough to call a M4 a weapon of war and a Stag Arms Model 8 (other then it being rod operated) not one...