Complete Gearboxes & Shells

ASG ULTIMATE Ver.II M4 AEG Complete Gearbox, High Speed (M100 Spring) A complete 2nd Generation ..

Guarder Enhanced Gearbox Shell Ver.3 (Marui Compatable) This Guarder Geabox Shell Will provide a..

Modify Complete Gear Box AK-47 (Rear Wired, High Speed, SP100, 8mm Bushings) This premium quality..

Modify Complete Gear Box M4 (Rear Wired, High Speed, SP100, 8mm Bushings) This premium quali..

Modify Torus Reinforced Airsoft Gearbox V2 (8mm) This high quality and Unique upgrade g..

NUPROL Delta Gearbox V.2 This is a factory standard NUPROL Delta Series V2 gearbox which comes r..

Retro-Arms - CNC gearbox SOPMOD M4 TM (8mm) A CNC Machined Version of the Tokyo Marui Recoil Sho..

Retro-Arms CNC Gearbox V3 (8mm Bearings), Quick Spring Change & Speed Trigger A CNC Machined..

Retro-Arms CNC Gearbox V2 (8mm Bearings), Quick Spring Change & Speed Trigger A CNC Machined..