The Guarder SP150 Infinite Torque-Up Kit is engineered to optimise the torque and durability of TM M4-A1 Series AEGs fitted with a V2 gearbox. Manufactured by Guarder, a reputable parts specialist, this kit is tailored for airsofters seeking robust performance upgrades.
- Designed specifically for TM M4-A1 Series (V2 gearbox)
- Supports higher torque output for demanding builds
- From a trusted airsoft upgrade brand
Ideal for those aiming to enhance internal gear strength and reliability. Please note: ensure compatibility with your set-up before purchasing.










