The "This is Callalily" YouTube channel reviews the Acetech Brighter CS & Blaster tracer units and both are availabe in the airsoft market. You might cringe at her trigger discipline though... "Hi guys, this is callalily! Let's try out Acetech's tracer units, Brighter CS and Blaster! It was super fun learning more about the tech behind these awesome tracers. I felt like I was in a sci-fi movie lol.