Lancer Tactical AEG Aluminum Gearbox Cylinder Upgrade (300-400mm Inner Barrels) (GG09-09)
Lancer Tactical AEG M4/M16 Gen2 Gearbox Cylinder - Stainless (GG09-03)
Lonex AEG AK Beta Enhanced Gearbox Cylinder/Piston Head Set (GG10-07)
Lonex AEG M4-A1,M4-RIS,SR-16,M733 Enhanced Gearbox Cylinder & POM Vent Piston Head Set
Lonex AEG Next Gen EBB Steel Gearbox Cylinder (GG08-18)
Lonex AEG PSG-1 Steel Gearbox Cylinder
Lonex AEG TM MP5 A4/A5 Series Steel Gearbox Cylinder
Lonex AEG TM Style M4A1/SR16 Series Steel Gearbox Cylinder (GG08-18)
Lonex AEG Tokyo Marui M14 Steel Gearbox Cylinder (450~401mm) (GG08-06)
Lonex AEG Tokyo Marui M14 Steel Gearbox Cylinder (550~451mm) (GG08-06)
Lonex AEG Tokyo Marui MP5K/PDW Series Steel Gearbox Cylinder (GG10-07)
Lonex AEG Version 2/3 TM Style G3/M16A2/AK Series Steel Gearbox Cylinder
Prometheus AEG Hard Gearbox Cylinder - Type A
Prometheus AEG Hard Gearbox Cylinder - Type B
Prometheus AEG Hard Gearbox Cylinder - Type C
Prometheus AEG Hard Gearbox Cylinder - Type D (GG10-09)
Prometheus AEG Hard Gearbox Cylinder - Type E
Prometheus AEG Hard Gearbox Cylinder - Type F
Prometheus AEG Stainless Steel Hard Gearbox Cylinder - Type A
Retro Arms AEG CNC Stainless Steel Gearbox Cylinder - Type A (130mm - 239mm Barrels) (GG10-11)
Retro Arms AEG CNC Stainless Steel Gearbox Cylinder - Type B (240mm - 289mm Barrel Length)
Retro Arms AEG CNC Stainless Steel Gearbox Cylinder - Type C (290mm-369mm Barrel Length) (GG09-03)
SHS AEG Grooved Gearbox Cylinder (400mm - 455mm Inner Barrels) (GG09-03)
SHS AEG Grooved Gearbox Cylinder (451mm - 590mm Inner Barrel)
