The Mobile Suit Option Set 6 & HD Mobile Worker set is a 1/144 scale High Grade IRON-BLOODED ARMS add-on kit released in 2017.
- A pair of Arm Rocket Launchers
- Multi-weapon pack
- Bladed bat
- 2 visors
- A pair of Fist hands
- Joint part
- Arm Rocket Launchers can attach to HGI-BO Gundam Barbatos Lupus' arms or Geirail's shoulders.
- Multi-weapon pack can attach in two different ways.
- The Bladed Bat & 2 different visors is compatible to HGI-BO IO Frame Shiden.
- A pair of fists can be attached to Gundam Barbatos Lupus.
- HD Mobile Worker's turret can attach to the joint part.
Other Gunpla releases with the add-on kits
- HGI-BO EB-08 Reginlaze (Standard Type) (with the Multi-Weapon Pack runner)