Near-future design for US special forces. Mostly focused on the goggles, making them more interesting and compact yet believable. Just maintained the design language throughout the rest of the body after that.
He's got the concept art for the rifle itself up here as well. In fact, that piece is what brought me by this gallery. The short answer would be "kinda". More aptly the described mechanism and form are reminiscent of what most of us would recognize as the super V, and it does label it as "Kriss recoil reduction system", but the weapon itself was branded as an H&K weapon in the concept art and named the G56. It also appears to borrow from quite a few other weapons platforms as well. Specifically it is shown with stocks similar to the bushmaster ACR and the magpul PRS stock, while the hand guard/chassis around the barrel as well as the gas block seem to have been borrowed from the FN scar weapons. The fire selector is distinctly H&K's style being that used in their MP5A4 and MP5A5 weapons.
...so again... kinda a kriss, but at the same time, kinda not. A realy badass weapon either way though.
Quite good research.) I could only distinct here ACR's barrel and stock. Its shell looks like kriss', probably therefore everyone refer the weapon to it. I could just say that this is AR version of Kriss.