Check the listing for details. Spyder Java Gun Electra Pilot Imagine ACS Delrin Bolt SIDE TOP COCKING anti chop. Condition: New. Listed at 9.99 USD. Spyder Java Gun Electra Pilot Imagine ACS Delrin Bolt SIDE TOP COCKING anti chop TOP/SIDE COCKING MODEL Brand new in original package! Retails for up to $35! 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. Compatible with: Electra (older models), Electra DX, Pilot, Pilot ACS, Imagine, Imagine LED, Imagine Select, Imagine S, Esprit, Raven Nexion and other top and side-cocking Spyder electronic markers from Kingman. Will NOT fit newer electronic Spyders! NOTE: Some Spyder models listed used a different bolt. Please check that your bolt has the same pin and cocking lug placement.