Ultimate Mil-Spec AEG springs are manufactured out of the best steel (SiCr) available for springs. With a minimum loss in power and consistency, the Mil-Spec spring series is the ULTIMATE choice for your AEG. The Mil-Spec springs are color coded for better identifying them when switching out the spring for different skirmishes.The springs are designed from the start to deliver the best output while keeping it's coil strength, consistency, and quality. With the closed and ground ends, the spring remains in place during use to prevent a reduction in ROF due to bending. SiCr spring steel construction Color coded ends make power identification easy Closed ends reduce bending M95 Blue - 300-330FPS M105 Green - 340-370FPS M115 Yellow - 375-405FPS M125 Orange - 400-430FPS M135 Red - 430-470FPS FPS is dependent on gearbox air seal, hop, hop rubber and other components. FPS is rough estimates only
