Originally Posted by trip286
You're splitting hairs here.
And really, so what if the direct impingement system operates the "piston"/bolt. You know full well what we're talking about, which is the conventionally accepted DI vs piston operating system.
Trip, yeah I know what you're talking about. It was also conventionally accepted that the earth was flat until the explorers who left the "known world" didn't "fall off the world".
There are, or were, rifles with actual direct gas operating systems. The Stoner pattern AR isn't one of them.
Although the reliability of the AR will always be questioned because of the stupid, but cost-effective, manufacturing choices made in Viet Nam, the modern versions of the Stoner pattern AR rifles and carbines are reliable, effective, and cost-effective to mass produce.
If you lube your rifle or carbine, replace components at or near the design life limits of the respective components and use quality magazines you won't have many problems.
Mike Pannone and a number of other well-known instructors have conducted exhaustive testing of the AR carbines using nothing more than proper lubrication and cheap, filthy ammo. The consensus has been that lubrication and replacement of consumable components make the weapon boringly reliable.
I'm sure the point will be debated ad-nauseum, but I've never had a major problem with my AR's and certainly nothing that was not fixable with remedial action.
To the posters worried about whether or not the weapon could potentially fail or whether or not their weapon makes the right sound or is aesthetically pleasing to them, I think you're worried about the wrong things. I love technology, but apparently some don't.
Whereupon Colt ceases to make properly functioning carbines, MagPul ceases to make properly functioning magazines, and something as common as motor oil is no longer available, I'll start worrying about whether or not my AR will function properly when I need it to.