Pro-Arms 130% Steel Recoil Spring Guide Rod for Marui G17 Gen 4 GBB

Pro-Arms 130% Steel Recoil Spring Guide Rod for Marui G17 Gen 4 GBB Steel Construction 130% Power up Design for upgrade extra recoil impulse for the pistol v Also helps with the handling of prolonged green gas use and faster cycling Suitable For Tokyo Marui G17 Gen4 Series Airsoft Gas Blow Back GBB Pistol