EMG Max Performance Gearbox Spring for Airsoft AEG Rifles (UK-SP90 / Silver)

Features Ultra durable steel construction Low tension coil design is optimized for long lasting strength Designed to last thousands of rounds without any compression or deformation Reduces stress, wear and tear for your gearbox due to less compression force at rest Shortened overall spring length allows easy installation and easy maintenance Color coded for quick identification of power rating Manufacturer: EMG Specifications: Length: 135mmVelocity: Approx. 280~340 FPSCompatibility: Fits most Airsoft AEG GearboxesMaterial: SteelDisclaimer: Professional installation highly recommended. Please use discretion when installing custom parts as fit and compatibility may vary. Modification may be required. Professional installation recommended.