Engineered Valve Spring and High-Power Rear Bolt Spring Kit Maximise your marker’s performance with our Engineered Valve Spring and High-Power Rear Bolt Spring Kit—a must-have upgrade for Spyder markers. This kit is designed to unlock your marker’s full potential by combining a precision-engineered valve spring with a high-power rear bolt spring. Together, these components ensure greater air release and deliver significantly increased FPS (feet per second). Perfect for hobbyists and enthusiasts who want to explore the upper limits of their marker’s capabilities, this kit is engineered to provide exceptional performance gains. Key Features: Enhanced Power: The combination of the valve spring and rear bolt spring allows your marker to release more air per shot, achieving a noticeable increase in FPS. Seamless Compatibility: Designed specifically for Spyder Custom markers. Efficient Upgrades: Optimises both the bolt and valve system for maximum power output. Why This Kit Works Better: Many players focus solely on upgrading their hammer spring, but the performance boost often falls short because the hammer spring still fights against a heavy, stock valve spring. With this upgraded engineered valve spring, the resistance is reduced, allowing the enhanced rear bolt spring to work at its full potential. Together, they provide unmatched power and efficiency for your marker. Pro Tip: Always ensure your marker is cocked back before airing up. If the marker is uncocked, the rear bolt may rest against the valve pin due to the lighter valve resistance, causing air to escape. Proper preparation ensures optimal function and prevents unnecessary air loss. Important Note: This kit is designed for hobby and experimental purposes only. It is not intended for use in standard paintball games or against individuals or animals. The increased power may render the marker unsafe for such applications. Push the boundaries of your marker’s capabilities with our Engineered Valve Spring and High-Power Rear Bolt Spring Kit—the ultimate upgrade for enthusiasts who demand more from their equipment.