High quality spring steel progressive 140%/120% recoil spring for Hi-Capa/1911 series GBB pistols. The recoil spring is compatible with Tokyo Marui Hi-Capa/1911 series BlowBack pistols and similar clones. This shorter than normal progressive RS1 recoil spring improves the recoil cycle.
For optimal performance, COWCOW Technology recommends using the RM1 recoil spring guide with the RS1 recoil spring.
Please note that installing tuning parts requires knowledge and technical expertise. Previous experience in tuning airsoft guns is also beneficial. It is also worth noting that airsoft guns are individual and installing parts may require adjustment and fine-tuning to suit each gun and configuration.