No, I personally am the worst enemy of the armalite system, so whether or not a new system is inherently better is irrelevant to the fact that direct gas inpingement is inherently WORSE than anything else on the table. Any factors of durability are relative only to the ones complaining about plastic in lieu of MUCH more expensive machined weapon receivers. The fact that the government already pays out the ass for the most basic of infantry weapons where the civilian can acquire better is all too telling of how it always has been (civilians acquiring the Thompson machinegun, for instance, during WW2, notably the M1928 updates to the overall design). The current M4 is the perfect example of a bad weapon done worse when they slapped on a shorter foregrip and a barrel length that didn't meet the effective length necessary to apply the complete force of the M855 cartridge (or the other standard cartridge prior whose designation escapes me at the moment), therefore defeating the purpose in using the 5.56NATO altogether. It was bad enough the original rollout of the M16A1 was as horrible as it was because it was shiny, new, and fell in line with frontline requirements of 'more steel down range' and less reloading. It was one of the only shining moments where the military learned its lesson about adopting new weapon systems and the faults and adaptations that come with it at the price-point given. Problem with the HK416 premise is of course the cost, but that is derived from the company itself I believe. Its a nice, fancy weapon that does everything everyone wants it to, in the same package as what is currently issued essentially, but H&K will never have a favorable price-point for ANY weapon market. I'm pretty sure thats why the USP is not really at all adopted in any U.S department wholly despite its good looks and fineries. A metric ton of great companies out there offer amazing improvements over the given classic design, and even in varied calibers, such as LMT or Barrett, who originally only offered uppers to convert pre-existing Armalite rifles. Good example of the best bang for the buck being Rock River Arms, though they save in assembly, their parts have had some of the best reviews from what I've seen, in packages under a grand.