SiegeTek make the strongest AEG gears on the planet.
This is the latest generation (Gen 4) of Chromoly gears from their factory, case hardened for extreme durability. This Sector Gear features an enhanced cutoff cam for snappier cutoff lever activation (and fewer semi-auto lockups), enlarged tappet cam and is compatible with all mechanical and optical cycle detection systems. Fully CNC machined and expertly finished, this gear will last for years to come in virtually any setup you could build.
For absolute strength and reliability, nothing else compares.