Tokyo Marui M4A1 Handguard Nut For Carbine (ZET System) GBB (# MGG2-11)

Tokyo Marui M4A1 Handguard Nut For Carbine (ZET System) GBB (# MGG2-11) Metal Construction Design For Replace the Origianl Parts (# MGG2-11) Suitable for M4A1 Series Airsoft Gas Blow Back GBB Rifle