With the amount of factual comments posted above, I might be beating a dead horse, but correct me if im mistaken, but many who argue on the Errornet, on the merits of the HK416, do seem to put too much focus on the operating system allowing for less fouling in use and also proclaiming some other issues that might not be the most relevant ones, than the fact that the operating system allows the weapon to run much cooler, therefore allowing more rounds to be put through the weapon before parts replacement / overhaul.
In addition to use in the U.S, the HK416 was recently adopted to use in Norway, where they had previously already had long trials over a new 5.56mm calibre weapon.
Shoud have one with two uppers here in about a week, itīll go into use immediately and will see a lot of rounds fired.
PS. We also have some AKs over here that shoot good, usually called Sakos and Valmets
The three I were issued did not fail me once, nor did I see many other issues with them either.