Delta Airsoft International Company present to you their video of their Burst Wizard which can be easily configured to provide several types of firing modes... "This AEG burst wizard can allow special burst mode firing from 1-7 shots per burst. It enforces LIPO battery low voltage protection. This works for LIPO, NIMH and NICD batteries at voltages up to 16VDC. It does soft starting of the motor every time the triggered is pulled to protect your motor and gear box. No modification to your AEG is required. It is in-line with your battery to motor connection. Two modes included in this bust wizard: sniper mode and normal mode, user can easily to set up as shown in the video."