The Spyder Sonix comes standard with a Delrin bolt with a pull-pin top-cocking knob for easy cleaning in between games. With one pull of the knob you can slide the entire bolt out of the marker for easy access to all internal portions of the breach. Redesigned contour body milling with dusted-matte finish anodizing. 9-1/2" aluminum barrel. Aluminum fore grip. Vertical feedback. One-piece velocity adjuster/spring guide. Durable steel-braided hose line. Ergonomic trigger frame with two-finger trigger. Inline Bottom-line ASA. Nonslip rupper grip panels. Vertical adapter with standard CA thread. Operates on CO2 or compressed air. Includes 200-round hopper, V-type goggles, 12-oz. CO2 cylinder, elbow, barrel plug and spare parts kit.