Give yourself the ultimate advantage with the revolutionary Rocking Trigger from Kingman. Its 2-in-1 trigger rocks between two contact points, increasing your speed and allowing you to deliver up to 30 balls-per-second. And because it's easy to install and compatible with all Spyder markers, now anyone can go from no skill to pro skill. The revolutionary Anti-Chop System is the world's first true anti-chop bolt. Simple and affordable, the ACS bolt delivers the same results as expensive markers with eyes. Just replace your existing bolt with the ACS bolt... simple as that! Rocking Trigger Features CAMD 3.0 (Color Access Mode Display) Firing Modes Include: Semi-auto, 3-round burst, 6-round burst, and full auto 2-in1 trigger rocks between two contact points Reactive trigger response, up to 30 balls/sec Adjustable rate of fire Adjustable trigger pull Aluminum trigger frame External battery charging port Easy installation in minutes Java 9.6v rechargeable battery Java battery charger Spare parts kit Semi-mode tournament lock Low battery indicator Secondary safety Operates effectively on CO2 or Compressed Air Fits: Fenix, Fenix ACS, Pilot, Pilot ACS, E-99, E-99 Avant, Imagine, Imagine Select, Espirit, Rodeo, Shutter, TL-X, TL-R, X-tra, Spyder TL, TL Plus, Compact Deluxe, Compact 2 in 1, Sonix, Sonix Pro, Victor, Victor II, Aggressor, Aggressor XT, Compact 2000, MR1 A.C.S. Bolt Features 30638 Delrin A.C.S. Bolt (Electronic Universal Bolt) 30639 Delrin A.C.S. Bolt (Xtra, Rear Cocking)-Upgrade For Spyder E-99 Avant, Spyder Flash, Flash w/ LCD, Spyder Rodeo, Shutter, Xtra, Aggressor, Aggressor XT, Spyder TL and TL Plus.