did you READ my post. .I couldn't find the pic off hand. .so I showed pic of other chronos available.I never said those pictured are Madbull knock offs
The last pic I think its made my laylax. I will only works with AEG's that's got a threaded barrel because you screw the sensor right on the barrel. That mean you can't chrono most GBB at all
![[Image: bbchecker.jpg]](http://www.airsoftgi.com/images/bbchecker.jpg)