Forearm Pieces & Shotgun for SS AOE Optimus Prime

I love my AOE Optimus Prime but I wanted it to be more like his final knight design and I didn't want to spend $80 on the Nemesis Prime version. So I modeled his Quad Barrel Shotgun and his knight forearm pieces.

Disclaimer: The forearm pieces do not work in transformation, they're meant for displaying with the robot mode

Filaments

Any filament works for these models, I recommend PLA for the best results and your default setting are good as long as you have supports for all these pieces.