6mm Badger tests this budget tracer unit under the Zlang Zlang brand that he got from Amazon... "In this video, I unbox and review a budget tracer unit from ZLANG SPORTS, which I picked up on Amazon for just $36. I wanted something to run on my Staccato C2 from 6mmProshop, and while I normally consider higher-end brands like AceTech, T238, or ESHOOTER, I decided to test out one of the cheapest options available.