ASG Ultimate CNC Gear Set (12.5:1 / 13.5:1 / 16.5:1) Ratio:18.5:1 *Pictured is the Pro V2

*Pictured is the Pro V2 regulator

2nd compartment 15" x 8" x 2"

Can pull heavy springs easily without torque gears

Includes enhanced hammer spring

It is compatible with most Airsoft AR-15 M4 AEGs including Tokyo Marui

ASG Ultimate CNC Gear Set (12.5:1 / 13.5:1 / 16.5:1) Ratio:18.5:1 *Pictured is the Pro V2Designed to offer uncompromising performance to any custom airsoft build, the Ultimate CNC range of gears provide the perfect gearbox elements for your AEG each gearset is precision engineered to safely deliver the precise rate of fire you require from your replica. The latest addition to the Ultimate upgrade parts series consists of a selection of CNC crafted airsoft gears, specially engineered for peak performance and using state of the art CNC