C/O Spring - 3.50 ID x 10 550# Silver P/C

The C/O Spring - 3.50 ID x 10 550# Silver P/C from QA1 is a high-performance coilover spring engineered for precision suspension tuning in tactical vehicles, law enforcement platforms, and military-grade applications. This component is designed for operators and technicians who demand repeatable ride height control and consistent load handling across demanding operational environments. Whether deployed in patrol vehicles, specialized ops rigs, or long-range precision platforms, this spring delivers the stability required for reliable performance under sustained load.

Manufactured to QA1's exacting standards, the C/O Spring features a 3.50-inch inner diameter with a robust 550-pound spring rate, delivering predictable deflection and minimal fade under repeated compression cycles. The silver powder-coated finish resists corrosion and provides long-term durability in harsh field conditions—critical for gear exposed to moisture, salt spray, and temperature extremes. The 10-inch free length allows for integration into existing coilover systems where precise spring selection is non-negotiable, maintaining geometry and suspension articulation without compromise. This specific rate and geometry combination ensures proper load transfer while maintaining clearance in tightly packaged suspension architectures.

Operators managing custom suspension builds, armored platform upgrades, or precision vehicle setups will recognize the value of matched spring rates for predictable handling and driver confidence. Installation requires proper coilover mounting hardware and should be paired with compatible dampers rated for the 550# spring rate to avoid premature wear or oscillation issues. Weighing 6.9 pounds, this component integrates seamlessly into modular suspension systems without adding unnecessary weight to platforms where every pound affects mobility and operational endurance.