A compact version of the Chimera Mk.II FET which utilizes FOUR powerful next-gen MOSFETs. Includes ALL the features the Chimera and fits completely inside the gearbox, making it ideal for AEGs with little room for an external FET.
The Spectre is one of the most advanced FET yet with double the features of its predecessor including nearly every feature requested by the airsoft community. 
 
These are the latest non-bluetooth version.