553-19 553 Grip Assembly
553-31 553 3-Shot Automatic Assembly
553-35 553 Selector Set
553-01 553 3 Prong Flash Hider
553-06 553 Handguard 1913 Rail
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
