Front-end gearbox: Used to mount the motor (down mounting only) and drive the belt inside the aluminum rail.
Back-end gearbox: Used at the end of the rail for belt return only. Can be similar to the front-end gear.
Optional steel cover for Back-end gearbox: Used to protect the back-end gear from errand shots up to .22 LR caliber. Highly recommended.
Overview
Front-end gearbox: Used to mount the motor (down mounting only) and drive the belt inside the aluminum rail.
Back-end gearbox: Used at the end of the rail for belt return only. Can be similar to the front-end gear.
Optional steel cover for Back-end gearbox: Used to protect the back-end gear from errand shots up to .22 LR caliber. Highly recommended.