It depends. I didn't get a good look in the video, though. My nephew played airsoft when he was a kid, and all of his airsoft guns had orange pieces on them that gave it away. I've seen others that look real.

Either way, maybe he shouldn't have walked up to the guy and yanked off his patch or whatever. That's assault. And it's even worse that it was a wheelchair-bound guy who can't get up and fight.