The guarder hi-speed motor turns your replica into a speed beast. The high quality 40K rpm motor provides the ultimate trigger response and a faster rate of fire. Please note that this motor is not suitable for springs heavier than M110. Guarder's high speed motor delivers 11 TPA ​​(turns per armature).

TPA stands for turns per armature. The armature is the central axis in the airsoft motor around which the wire is wound. The TPA indicates how many times the wire is wound. So, for example, 22 TPA means that there are 22 layers of wire wound on each side. More wire results in a stronger magnetic field, more torque, but also more weight and less speed. It's also true that a higher TPA means less susceptibility to overheating.

A higher TPA yields more torque, while a lower TPA results in higher speed.