Built for torque, built to last
The ASG Ultimate Boost 30K Custom motor in short axle format is a high-torque, low-speed powerplant engineered to push your AEG hard while protecting its internal integrity. Rated to around 30,000 RPM, it delivers the pulling power needed for heavier springs without sacrificing reliability.
Premium internal components
Inside you get a CNC machined steel pinion gear, a CNC machined stainless steel shaft and a silicon steel rotor housed in a precision-built casing. High-grade silver-plated wiring and larger carbon brushes improve electrical conductivity, while enlarged motor-shaft ball-bearing stabilisers keep everything spinning smoothly.
Neodymium magnets for heat resistance
The Boost 30K uses heat-resistant neodymium rare-earth magnets, the strongest permanent magnets available. They hold their strength at the higher temperatures generated in torque-heavy and high-rate setups, so the motor keeps performing instead of fading or burning out.
Wide platform compatibility
This short axle version suits version 1, 3, 5, 7, 8 and 10 gearboxes, making it a strong match for the ASG Scorpion EVO3-A1, AK variants, G36 rifles and many other AEGs. ASG recommends running it alongside Mil-Spec upgrade springs in the M95 to M115 range.
Fitting and support
We recommend this motor is only fitted by an experienced or qualified technician, as incorrect installation can cause damage not covered by warranty. Our Kent workshop offers a full airsoft repair and upgrade service, and you can browse more parts in our airsoft accessories range.














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