The 42nd edition of the M.S.G Weapon Unit Series is a folding arm that is intended for a wide variety of uses.

The folding arm uses a variety of 0.1 inch (3 mm) axis to ensure a wide range of motion.
When stored, it is almost square so you can wear it without disturbing your silhouette.
The upper arm can be expanded to a maximum of approximately 3.5 inches (90 mm).
Each part can be disassembled and used as a coupling part, and each shaft has a 0.1 inch (3 mm) axis, so you can use a variety of M.S.G.

The basic weapon has a "small missile pod" attached to the top arm tip and a "folding rifle" on the lower arm.
The folding rifle muzzle has a 3mm connection hole that allows you to attach a variety of M.S.G.
The multi-platform connects the arm to the weapon, can also be used to attach a variety of M.S.G.

This is a plastic model kit that requires assembly.

(From Amazon.co.jp)