Evike.com posted a video testing the GPR Hit Sensor System. This is developed by the South Korean company called Gunpower and is in use in the country for over a decade now with various configurations to suit airsoft competition needs... "Finally! A Hit Tracker for Competitive Airsoft?!

We test out the new GPR System (Helmet, Vest, and Mock-Suppressor) that just might change the Competitive Airsoft game FOREVER!!!

This system track BB hits (and ONLY BB hits) and allows a game organizer to set how many hits a player can take before being 'out'. PLUS the add-on mock-suppressor disables the user's weapon after they've been eliminated!"

Just click on the image below to play the video: