The Enhanced Recoil Spring is made from stainless steel for stability, durability. 120% stiffer than stock springs, helping to speed up the cycle.Included:2 x 120% Enhanced Recoil SpringUsage:Use for Tokyo Marui GL 17 Gen3..

The Enhanced Recoil Spring is made from stainless steel for stability, durability. 140% stiffer than stock springs, helping to speed up the cycle.Included:2 x 140% Enhanced Recoil SpringUsage:Use for Tokyo Marui GL 17 Gen3..