Description Features Aluminum alloy construction Standard version 2 design Designed for use with 8mm bearings and bushings Quick change spring guide allows for easy FPS adjustment
Quick view Add to Cart Matrix Matrix CNC 8mm Version 3 Gearbox with Quick Change Spring Guide for Airsoft AEG Rifles $209.75
Quick view Add to Cart Golden Eagle Golden Eagle Polycarbonate Quick Change Spring Guide for Version 3 Airsoft AEG Gearboxes $11.77
Quick view Add to Cart Vegaforce Airsoft VFC Version 2 ECS Avalon Gearbox Shell w/ Quick Change Spring $70.65
Quick view Add to Cart Matrix Matrix CNC 8mm M4 M16 Version 2 Quick Change Spring Gearbox for Airsoft AEG Rifles - Rear Wiring $199.45
Quick view Add to Cart Matrix Matrix CNC 8mm M4 M16 Version 2 Quick Change Spring Gearbox for Airsoft AEG Rifles - Front Wiring $182.52
Quick view Add to Cart APS Airsoft APS Hybrid Ver.2 Airsoft AEG 8mm Quick Spring Change Gearbox - Rear Wired $69.18
Quick view Add to Cart APS Airsoft APS Hybrid Ver.2 Airsoft AEG 8mm Quick Spring Change Gearbox - Front Wired $69.18
Quick view Add to Cart Matrix Matrix Advanced 8mm M4 M16 Version 2 Quick Change Spring Gearbox for Airsoft AEG Rifles (460-500fps) - Rear Wired $158.97
Quick view Add to Cart ZCI ZCI Version 2 8mm Complete Gearbox w/ QD Spring Change System (Model: Rear-Wired) $58.14