Interesting statement, IIRC the Germans ran into the same thing, to GOOD of engineering and too many parts failed in real life battle.
The Luger pistol was exquisitely well-made but the high quality, low tolerance manufacture made it susceptible to fouling from ordinary dust and grime, so it had to be issued with a holster that kept it fully encapsulated and clean.
For the last 45 years, every trigger puller in the US military has been a field tester for Colt Armament's DI AR15 platform. And it's been standard issue for more than 70 other countries. That's why it's one of the best-developed and most refined weapons platforms on the planet. It has no flaws that aren't already well-documented.
About two months ago, more than sixty years after the fact, Colt finally released their own OpRod AR, which they probably never would have done if the HK416 (and similar) weren't taking market share.
