Mucho Like-o, Jango!
I dig SAO. This is head & shoulders better than my cheap-o version; looks a lot bigger too.
In SAO II, they used modified lightsaber sounds. They sound like standard sounds, but pitched up and modulated a tiny bit with some choral effects. I used "Youngling" and turned it down. That sounded right to me. but that's just to my ear... which has been ravaged greatly over the years.
Switches with that far of a travel are usually a multi-purpose, like a DP4T. Otherwise, a custom, integrated with the design would probably be the correct answer. It does, however, remind me of a standard issue IR strobe (ms-2000) switch... maybe I'll reattack this someday.