Check the listing for details. Spyder Delrin Anti-Chop Bolt #30638. Condition: New. Listed at 41.77 USD. 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 an aluminum rear cocking rod, hardened steel lug and Delrin self-lubricating body. Use with these Spyder E-MarkersElectraElectra DXPilot ACSPilotImagine LEDImagineImagine SelectImagine SEspritRaven Nexion Styled Text ****************************************** Keep more money in your pocket by saving on shipping! Order multiple items in one (1) checkout cart and bundle your shipping costs! ****************************************** Important Notice for International Buyers: Please be aware that import duties, taxes, and customs charges are not included in the item price or shipping cost. These additional charges are the buyer's responsibility.