ASG Ultimate M105 spring

ASG Ultimate Mil-Spec AEG springs are manufactured out of the best steel (SiCr) available for springs. With 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.

• Military specification spring steel - 
• SiCr - Best possible steel for springs
• The calibration test has been carried out on 6.03 - 300mm barrel. Zero hopup with 0.20g BB's.
• Progressive coiling - Provides a soft start which eases stress on both mechanical and electrical parts
• Closed and grinded ends - Stable straight ends minimizes side bending which reduce ROF loss
• Pre-compressed - Greatly reduces power loss from initial shrinkage
• Black zink plating - Only corrosion protection which does not impair spring performance
• Full specification control secures exact same specification at every spring
• Color coding for easy indication of individual spring grade