For those that really enjoy lightgun games (and know how frustrating they can be in MAME and other emulators), this looks like a really good solution.
I actually ordered a couple recoil versions via their kickstarter site....I think I'm in the november ship batch.
The thing I like the most about this solution is you dont need a light bar at your monitor or flat screen tv!
Check it out:
https://www.sindenlightgun.com