I am not asking you to repeat what You said, I am asking you to ID which parts make it M777.
I can show you which part on this guns make it NOT M777.
First of all, as I said, the barrel and the side skirt in this picture is roughly 1/2 thru the barrel. As the actual M777 it reaches 2/3 of the barrel.
On the other hand, the area highlighted in black circle is smooth. In M777, the top side have the optics on top (Green Circle as reference) and the bottom side you have the latch/notch that hold that barrel in place via a screw jack (Red Circle), It will not be smooth like the gun destroyed in the picture. You need that notch because that where you take down the barrel so you can put it together and have it airdrop. There is also a considerable gap within that shielding so that you can access the screwjack, which I don't see in the gun that was destroyed.
Unlike you, I have had field stripped a M777 (well, I didn't do it myself) so I know what it looks like, the gun that you show have no way you can take it apart, which is what M777 is famous for.
So no, that is NOT a M777.
We don't know the angle on how that barrel turn, it could be 2A65 or 2A36 or any system turn to the side.
Now, your turn, what identify that destroyed gun is M777, talk is REALLY CHEAP, now show me some action, prove that I was wrong, please, and I am not asking for "The RT title is M777" BS, I need you to physically identify that gun as M777 by point it to the feature that appear on a M777.