ACTION Aluminum Recoil Spring Guide Set for KSC G19 GBB (LW) Gloves - Power Source: Battery (Ak

- Power Source:  Battery (Ak Stick)

-WA Complete Bolt Carrier (Negative Pressure)(WP113)

G&P Aluminum M4A1 Free Float Taper AEG Outer Barrel Kit

SKU DY-GRN04 Item Weight (gram) 100 Major Color Black Built Material High Density Nylon Construction Manufacturer DYTAC Hop-up N/A Shooting Mode N/A Gearbox Type N/A Fit Battery Pack N/A Bullet Type N/A Pistol Power Source N/A

You need to nearly dissebling the guns completely in order to change the spring in the gear box

ACTION Aluminum Recoil Spring Guide Set for KSC G19 GBB (LW) Gloves - Power Source: Battery (AkAluminum Made Recoil Spring Upgrade Set Light Weight Version Design for KSC G19 Series Airsoft Gas Blow Back Pistol Included Recoil Spring & Spring Guide with Ball Bearing SKU A SGB 05A UPC N A Item Weight (gram) 40 Major Color Other Built Material Aluminum Manufacturer ACTION