It's time to prepare that spare M4 you have to take in this Fusion Engine Version 2 gearbox from PolarStar... "Have you ever dreamed of Polarizing your MP5, G3 or SCAR? With the introduction of the GEN3, now you can!  At first glance the GEN3 FEV2 looks very much like the GEN2 and, for the most part, the two are quite similar. However, unlike its predecessor, the FEV2 GEN3 is no longer just for the M4/M16 series rifle. We applied the same concept used with our Version 3 Fusion Engine™ so that it is now able to interface with the selector plate and related components of your existing AEG’s gearbox. This makes it possible to adapt the engine for use in multiple rifle models which share the Version 2 gearbox without any major modification.

The FEV2 GEN3 will come complete with a M4/M16 series trigger and steel selector plate so that it can be installed into any M4/M16 series AEG which is Tokyo Marui compatible. However, by installing a different nozzle or rifle specific conversion kit, you will be able to expand the number of rifles it will be compatible with. In most cases all you’ll need to do is change out the trigger and selector components with ones from your AEG, install a different Fusion Engine™ nozzle, and the engine is ready to use in a completely different model of rifle."

Read the full news at the Polar Star Airsoft Blog.