Retainer Geometry for Charging Adapter
So this piece doesn't keep falling out all the time.
Larger Display Module
1.9 inch + make the "wheel" a real potentiometer that can do stuff.
32-round Magazine
Based off the CP33 geometry
Magnetic I2C Connectors for the "Front" and "Back"
This will make sliding the handguard on/off not such a huge pain.