Ultimate Mil-Spec AEG Spring
High performance springs, made from Mil-Spec steel!
*Mil-Spec SiCr steel spring.
*Progressive coiling reduces mechanical and electrical stress
*Black zink plating to protect against corrosion.
*Pre-compressed, for minimaeFPS loss over time
*Closed and flat-grinded ends minimalises the bending of the spring
*Calibrated with a 6.03 x 300mm barrel, No hop up, 0.20g BB's
*Full specification control secures specification consistency with each spring!
*Color coded for easy recognition