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 2016.
- Large Railgun
- Long Distance Railgun
- 2 Short-barreled Cannons
- 2 Assault Knives
- A pair of open hand parts
- Joint Parts
Kit Features & Gimmicks
- Large Railgun's muzzle can extended or retract.
- Long Distance Railgun can attach to HGI-BO Reginlaze.
- The weapon can also attach in two different positions.
- Short-barred Cannons and Assault knives are compatible to HGI-BO Gundam Flauros.
- The cannons can also be attached with the included joint parts.
- Open Hand parts are compatible to HGI-BO Gundam Vidar or any other Gundam Frame units with the same type of hand designs with an exception of Barbatos Lupus & Barbatos Lupus Rex.
Other Gunpla releases with the add-on kits
- HGI-BO EB-08s Iok's Reginlaze (with the Long Distance Railgun runner)