This is a Bandai 1/144 Option Parts Set Gunpla 14 (Gunbarrel Striker) [5068322]

The Gunbarrel Striker that appeared in "Mobile Suit Gundam Seed MSV" is now available as part of Bandai's "Option Parts Set" series! It transforms from its fighter plane form to a backpack, and can be attached to various Gunpla; the deployed state of the Gunbarrel can be reproduced with parts replacement. The canopy is made of clear parts. One-axis and two-axis joint parts are included for use with various kits; you can also reproduce the Gunbarrel Strike Gundam by combining this item with the 1/144-scale Entry Grade Strike Gundam!