Eclipse CS3 Single Trigger Electro Frame Kit BlackCS3 Single Finger Electronic Frame Kit For those who like to use just one finger to pull the trigger, this single finger electronic frame kit for the CS3 is the perfect mix of old school playing feel combined with the most technically advanced electronic marker in our range. Simply remove your existing electronic frame, transfer your frame electronics into the single finger frame, replace the trigger, put it back together and enjoy. INCLUDES + CS3