Check the listing for details. Kingman Spyder Java Gun ACS Bolt MECHANICAL Side/Top Cocking 30640 delron. Condition: New. Listed at 12.95 USD. Kingman Spyder Java Gun ACS Bolt MECHANICAL Side/Top Cocking 30640 delron MECHANICAL TOP/SIDE COCKING MODEL #30640 Brand new in original package! For Spyders: TL-X, TL-R, Sonix, Sonix Pro, Victor, Victor II and other top & side-cocking Spyder mechanical markers from Kingman. The revolutionary ACS (Anti-Chop System) is the world's first true anti-chop bolt. This is a drop-in accessory, which replaces your stock bolt with no modifications needed! Simple and affordable! The ACS bolt delivers the same results as expensive markers with eyes! The ACS Bolt is designed with a precision tensioned spring which recognizes obstructions before crushing paintballs and jamming your marker. Also features a hardened steel lug and Delrin self-lubricating body.