KWA M-97S High Torque Gear Sets (97S)

The KWA M-97S High Torque Gear Sets (97S) are a purpose-built internal upgrade for KWA AEG owners who need durable gears that can cope with higher stress setups. Made from hardened steel, this gear set is designed to stand up to heavy use while keeping your gearbox running consistently in compatible KM4, VM4 and RM4 AEG platforms.

In practical terms, these high torque airsoft gears are suited to builds where reliability under load matters more than chasing headline speed. The sector gear includes a solid brass delay chip, which helps improve BB feeding in high speed configurations and can make the cycle feel more dependable during sustained firing.

Compatibility is the key point with this set. The KWA M-97S gear set fits KWA KM4, VM4 and RM4 AEG 2, 2.1 and 3 models, but it will not fit pre-AEG 3 RM4s. It also does not fit the original Magpul PTS RM4 ERG, and the spur gear is not compatible with the Magpul PTS ERG platform. If you are servicing a KWA gearbox, it is worth checking your exact model version before ordering, especially if you are also replacing items such as the motor, piston or other gearbox parts.

For KWA users wanting a hard-wearing replacement or a more suitable gear set for a demanding build, this is a precise, model-specific option that keeps compatibility front and centre. Check your rifle version carefully and order with confidence.