553-30 553 Trigger Assembly
553-M-06 553 Magazine Output Valve
553-04 553 Front Sight Assembly
553-10 553 245mm Inner Barrel
553-M-02-BK 553 Magazine Shell
553-02-2 553 Gas Regulator Valve
553-02-3 553 Gas Tube Part A
553-02-5 553 Handguard Frame
553-12 553 HOP-UP Set & Chamber
553-17-2 553 Charging Handle Catch
553-22 553 Trigger Set
553-24 553 Push Pin Set
