Solink High Power Spring M140 450 - 550 FPS

Brand: Solink Construction: Stainless Steel Compatibility: All Version AEG Gearboxes Spring Tension: M140 (450 - 550 FPS) Features Irregular pitch spring coils reduce stress, wear, and tear for your gearbox Made out of stainless steel giving it an increased tension and durability Designed for all version Airsoft AEG gearboxes