Guns Modify Stainless Steel Pin Set for Marui G Series GBB (Gold/Tin Nitride)

Guns Modify Stainless Steel Pin Set for Marui G Series GBB (Gold/Tin Nitride) Stainless Steel Construction Design for replace the original ones with stainless steel ones that will be much more durable Suitable for Tokyo Marui G Series Airsoft gas Blow Back GBB Pistol Please note self-installation is required