Thank you, that certainly looks silly and unfamiliar to me. This one must have a silly CQB short barrel.

edit: I looked again, still seems like AI. Why are there two weird strings coming back from the Muzzle Shroud to the Magazine and Receiver? Forward Grip looks silly too, but that could just be a shadow making a weird silhouette.

Edit: also, looking more, check out the forward Knee, what is the the weird dark shadow/chunk obscuring 1/4 of the leg, weird how it leaks onto the other leg too.