Elite Force Avalon VFC ECS Gen2 6mm BB Airsoft Gun Complete Gearbox Set

Specifications Material: CNC Aluminum For М4 / М16 / МР-5 / SCAR Lightweight and durable construction Features Compatible with Avalon VFC M4/M16 Airsoft Guns and other AEGs with a V2 gearbox Standard version 2 gearbox design Reinforced polymer internal components Inline wired MOSFET Match-grade internals The VFC Avalon ECS M4 Complete Gearbox.  M4 Avalon AEG style, fits in all the VR16 Avalon guns by Elite Force.  A fully built and ready to drop-in gearbox with all its parts ready to go.  Fits airsoft M4 AEGs (VFC) and may fit other models.  Comes with what is pictured.  A very high quality Version 2 (V2) gearbox made by VFC ready to go.  Other gun compatibility info TBD.