Spark Accelerate Piston O-Ring by AIRSOFT97

Spark presents the first dedicated high-compression piston upgrade component engineered with an extreme low-friction fluororubber compound and advanced thermal resistance stability—100% Made in Japan. The advanced fluororubber composite delivers exceptional mechanical pressure resistance, reduced surface drag, and superior smoothness through proprietary self-lubricating materials. The structural profile is manufactured using high-precision molding technology, ensuring perfect pneumatic sealing and dimensional precision equivalent to custom custom-molded internal mechanics. The specialized rubber base minimizes thermal degradation to decrease speed consistency variations while significantly reducing pressure drops during high-RPS rapid fire. Standardized thickness tolerances and oil-resistant properties minimize structural friction and maintain consistent compression sealing for extended gearbox reliability. Technical Specifications: Material: High-grade, low-friction fluororubber (FKM) compound Dimensions: 2.6mm wire diameter | 24mm outer diameter | 18.7mm inner diameter Manufacturing: High-precision molding with extreme thermal stability Compatibility: Standard Tokyo Marui-spec version 2 and version 3 AEG piston heads Origin: 100% Designed and manufactured in Japan by AIRSOFT97 Design: Heat-resistant compound optimized for extreme pressure and high-cycle lubrication