Find out more about the MadBull Airsoft Troy Battle Axe Grip at Jag Precision... "The MadBull Airsoft pistol grip licensed by Troy Industries comes in two options. The first option will be with a motor and the other option will be without a motor? Why a motor you ask? Well the Troy Battle Axe Grip by MadBull Airsoft is just like the firearm counterpart in that is it much shorter than a regular AR15 pistol grip. The Airsoft version will be using the Medium type motor which is not the most standard option on the market.