These SHS newest generation CNC finished steel gears are great bang for your buck! I have been using these in wide range of builds since they released first generation in 2009-2010?
Add an 9 teeth bevel to this set and you get nice set of 20:1 gears!
These gears are great tuneup for performance buck and base for DSG and Torque builds. They are really cheap and I can fully recommend. I have had these in M170 DSG and M150 SSG guns they have been holding nicely.
These are still ACM gears and sometimes you can win ACM lottery.
I found these cheaply from Airsoft Peak (Shop that I mostly use to get my ACM parts)
SHS Torque Up High Speed Flat Gear Set 18:1 for Gearbox V2/3