Matrix CNC Machined Steel Super High Speed Airsoft Gear Set (Ratio: 13:

Features
Heavy duty steel gears
Precision CNC machined building and construction
Heat treated for better strength and sturdiness
Appropriately balanced sector gear by means of milling on teeth side
SHS OEM gears

Product: Steel
Equipment Ratio: 13:1 Super High Speed (Advised for springs M110 and under)
Compatibility: The Majority Of Basic Airsoft AEG Gearboxes (M4, AK, MP5, G36, P90, and Other Suitable Models)

Maker: Matrix (OEM by SHS)
About MatrixEstablished in 2001 for Airsofters by Airsofters. Team Matrix thrive on the vision to better the sport of Airsoft with budget-friendly high quality Airsoft equipment. With decades of experiences as Airsoft enthusiasts ourselves, we live, sleep, and breathe Airsoft. Matrix provides a broad selection of skirmish grade replicas from rifles to pistols, a variety of devices, and tactical equipment from helmets to boots. It is the Matrix objective to prepare every Airsoft shooter the perfect experience!