Product Description (English) To maximize the potential of the EVOLT and enable the perfect setup for any field or playstyle, we pursued uncompromising quality. "Fully Made in Japan · Professional Grade" This is not just a repurposed generic part. These springs were born from direct collaboration with professional engineers at a specialized Japanese spring factory, starting from the initial design phase. High-Precision Design: Developed by analyzing the EVOLT’s unique mechanism to achieve ideal response while minimizing mechanical load. Superior Durability: Uses high-quality materials resistant to "sagging" or fatigue, even after repeated compression. Made in Japan: Each spring is meticulously finished under strict quality control. 4-Lineup Selection Based on the stock spring rate as 100%, we offer four types to suit your specific needs. TME85 (-15%) Ideal for meeting indoor field regulations and reducing the impact on other players. TME92 (-8%) Slightly milder than stock. Perfect for fine-tuning FPS or counteracting fluctuations caused by altitude and air pressure. TME108 (+8%) For those using heavy BBs for stable long-range trajectories, or regaining power lost from sector-gear short stroking. Requires a short or loose-bore barrel. For advanced users. TME115 (+15%) Designed for ultra-heavy BBs or high-potential builds like aggressive short stroking. Requires an ultra-short or ultra-loose-bore barrel. For advanced users. Elevate Your EVOLT The EVOLT is an exceptionally well-crafted platform, but these springs allow you to transform it into your own "ultimate custom build." We have listened to user feedback, such as: "I want to use it indoors, but the FPS is too close to the limit" or "I want to maintain power even with a short-barreled EVOLT." Experience the reliable precision born from specialized Japanese engineering. [CAUTION] Disassembling or customizing airsoft guns is at your own risk. Always check the muzzle velocity with a chronograph after installation to ensure compliance with local laws and regulations. Reference Measurements Based on Tokyo Marui EVOLT (Spring replacement only) TME92 (using TM 0.20g BBs) Min HOP: approx. 86.45 m/s Max HOP: approx. 89.23 m/s TME85 (using TM 0.20g BBs) Min HOP: approx. 83.02 m/s Max HOP: approx. 85.05 m/s