Ouch. I never claimed to have experience with the weapon or said anything I thought wasn't accurate. The problems that I was referring to had nothing to do with the powder issues and self cleaning label the gun was given in Vietnam- I know the DoD never even issued cleaning kits at the rifles introduction due to their perception of the aircraft grade parts, gas system, and the higher quality powders used during the testing period. I was talking more about the maintenance in itself. The M16's number one rival- the AK-47, requires little to none.
I realize that proper maintenance is essential, but that being said- if the 416 or the XM8 or whatever else can last longer without maintenance- be that during periods of little use or periods of extended fire, I feel like that's an improvement looking into. My friend shoots a Rock River Arms AR-15 and the only malfunction he's had in the years he's shot it have been due to poor homemade reloads. The RRA AR is a much tighter system from what I understand, and long periods of little to no use don't require cleaning in between. He's explained to me, his words not mine so I don't know their accuracy, that the upper and lower halves of Colt and Armalite don't have a perfect fit allowing outside debris. The difference in cost of course is absurd. A few hundred for an Armalite vs. a thousand plus for an RRA- I don't expect the US Government to contract their M16/M4s out to people who take longer to crank them out and charge twice as much. That being said, you must admit that the basic elements of the rifle are almost 50 years old.
While cleaning the firearm every chance one gets might be fine if one has the time, I feel like the need for a more modernized weapon system that can sustain fire with minimal maintenance for a long period of time is essential. Especially when our enemies don't care if they hide their AK in the dirt and mud, pull back the bolt when they need it and go to town. You're right that I've never handled the weapon, but that doesn't mean my opinion should be considered undervalued or plain wrong. I'm sure that, if at it's peak condition, the M4 is great- but I think there are better systems out there that work just as well, if not better, during imperfect conditions. Our troops on the front line don't have the pleasure of failure to fire that my friend does on the range- and if it's a pain for him, I can only imagine. I don't see anything wrong with top of the line equipment in the hands of our soldiers, cost aside. In my own inexperienced opinion, I just think the M16/M4 family has been forced to play too much catch up for too long a time period. I don't think the 416 or the XM8 is a godsend perfect fix system, but I think it's about time our military shifts gears to a more future thinking kit- I didn't mean anything more than that.