So superior that when it's failures at Wanat killed American soldiers, the US Army called for a redesign of the M4...with a gas piston.
Look, if Army guys on garrison duty can’t keep a rifle clean and functioning, I can’t help them.
Ask the USMC if they’ve had this problem, or the 82nd or SFs or other non-leg troops.
I’ve seen leg Army guys who would tie their two bootlaces together. I guess that means they should redesign boots with zippers for them.
Where’s your gas piston military M4s then?? They don’t exist. Because its pure bunk.
But this is a completely different subject. With or without the gas piston, AR upper receivers are superior. The piston is just an add-on. The basic design of the upper receiver is more or less unchanged.
“with a gas piston”
As Travis has already pointed out, that gas piston cycling leads to a major recoil affect with a bump in the sight picture the AK suffers from. The AR platform is smooth shot from shot and leads to very quick follow up shots. I know of no gas tub failures such as that a piston is needed. That gas tube unlocks the bolt every time and no piston would do better.