Have you only handled the cheapest made AR-15s shooting the sketchiest ammo possible?
I wasted my youth in the Jewnited states army so probably.
As someone who has put many rounds through a M16-A4, numerous AR-15s suppressed and unsuppressed carbon build up causing malfunctions hasnt been an issue.
I'm going to guess your definition of "many" is not a universal definition
Spoiler alert, the US military is filled with idiots who dont really know anything about small arms and randomly force changes for no real reason(another great example is the gov profile barrel in the A2). Stoner thought the idea was idiotic and no one is taught to rely on the FA.
ok
What the hell does that have anything to do with the actual weapon itself? Bean counters forcing you to use the wrong kind of ammo resulting in subpar performance isnt an issue with the weapon.
Most AK platforms can fire shit ammunition without major issues. Most ARs can't.
By retards who dont actually use firearms or understand firearms? Aka McNamara bean counters.
or aka people who think the US fields practical infantry equipment
And even AKs need to be cleaned. Theres a reason why theres a long skinny rod underneath the barrel.
Yeah, you need to clean AKs. You don't ,however, have to spend two hours cleaning them after you take them to a qual range and fire like 3 mags
What crack are you smoking? Trying to move away? The Brits have just adopted an AR pattern rifle designed/built by KAC.
This is news to me since they really liked their massively failed bull-pup rifles, but wouldn't really surprise me since the British army is increasingly becoming a joke/US foreign legion.
And the HK 416 is still an AR pattern rifle.
The HK 416 is as much of an AR pattern rifle as the AK is a Sturmgewehr 44 pattern rifle. There are external similarities but they're dramatically different mechanically. At the time the US military wanted something that felt like an AR, but wasn't an AR, and HK delivered just that.
Also, the HK 416 was originally designed for the US military but rejected, and has now ended up with the French. Most likely there's some fuckery there which wont come out until much later.
Side note:
I find it very amusing that the fucking French now objectively have a more practical service rifle than the British or American army.
Edit/clarification:

If anyone is wondering what we're sperging about, top is an AR pattern rifle with a piston system, and bottom is a gas system. Top is similar to the AK pattern rifles which have always operated on a piston system.
It took trillions of US dollars and decades to finally understand that blowing carbon back into a receiver that has extremely tight tolerances might cause malfunctions and substantial wear and tear on a rifle's internal parts. This is spite of the fact that the previous generations of US service rifles, the M1, and M14 didn't have this retarded flaw.
Basically ARs are the now finally, detransitioning faggots of service rifles, but they're still shit.