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 $208.87
Quick view Add to Cart Golden Eagle Golden Eagle Polycarbonate Quick Change Spring Guide for Version 3 Airsoft AEG Gearboxes $11.72
Quick view Add to Cart Matrix Matrix CNC 8mm M4 M16 Version 2 Quick Change Spring Gearbox for Airsoft AEG Rifles - Rear Wiring $198.61
Quick view Add to Cart Matrix Matrix CNC 8mm M4 M16 Version 2 Quick Change Spring Gearbox for Airsoft AEG Rifles - Front Wiring $181.75
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 $158.30
Quick view Add to Cart APS Airsoft APS Hybrid Ver.2 Airsoft AEG 8mm Quick Spring Change Gearbox - Front Wired $68.89
Quick view Add to Cart ZCI ZCI Version 2 8mm Complete Gearbox w/ QD Spring Change System (Model: Rear-Wired) $57.89
Quick view Add to Cart APS Airsoft APS Hybrid Ver.2 Airsoft AEG 8mm Quick Spring Change Gearbox - Rear Wired $68.89