Everything you need to upgrade your basic 98 Custom to an E-grip with firing modes.
4 Firing Modes
Semi-Auto
3 Shot Safety Burst
Full-Auto Normal - 12 BPS
Full-Auto Fast - 15 BPS
To activate full-auto modes you must pull the trigger 4 single pulls within 1.00 second and hold the 4th pull to fire full-auto until you release the trigger.