It's Giles, from The Airgun Show! I'll bet that was quite a surprise, a heckuva step up from his 12fpe guns!
Last year I had to go to Phoenix for a work trip. The work trip was a snoozefest, but I got to go by AoA before I went home. My coworker actually bought a new airgun while we were there! During our visit I got to meet Kip and put my hands on that rifle. I thought he told me it was built to fill to 4500psi, which would explain how they get so many good shots from the "low" power setting. another puzzler...he said it's made for a .452 bullet, not the .457 "45/70" bullet used by the DAQ, Texan and (I assume) others. But the .452 is normally, I believe, a pistol bullet....did you see the 440gr monster Giles was holding??? Not your typical pistol bullet for sure!