7mm/8mm CNC 420F Steel Bushings for Airsoft Gearbox SHS

420F BUSHINGS The bushing is made of 420F stainless steel and is CNC Precision Automatic Lathe machined to ensure concentricity, high precision and cylindricity. Hardened to HRC38-42 by heat treatment and blackened surface. PACKING LIST One Set : 6 PCS Quantity depends on purchase options! Unlock Up to 50% Off! Join Us! We offer a variety of gear ratios and types for you to choose from, ensuring you always find the perfect fit with your needs! With over 20 years of machining experience, we have perfected our unique processing techniques and let our product quality speak for itself. Continuously refining gear parameters and optimizing production processes, we test materials rigorously to ensure smoother operation, quieter performance, and enhanced gear functionality. Furthermore, we collaborate closely with firearm experts from around the world, including Italy, the United States, Japan, Brazil, and others, conducting extensive testing before any product launch. We prioritize customer-centric upgrades, aiming for every player to enjoy a superior airsoft experience. We welcome your suggestions to further improve our products for mutual success. Partnering with us promises a unique experience tailored to meet your needs. Contact us now for special discounts on bulk orders that you won't want to miss!