Airsoftjunkiez now have in stock the Lightning Banjo from S2 Airsoft designed to help the PolarStar Fusion Engine more efficient in air use... "The Lightning Banjo is an upgrade part for the Fusion Engine that dramatically improves the efficiency of the FE platform by 25 to 90% more shots! Works with V2 Gen 3 and also V2 Gen2/ and Gen 1 but will require modification.