This is a Strike Gundam mixed with parts from the Exceed Galaxy and Lightning Buster, and further partially painted with Acrylion, Arrtx, and Gundam Marker EX.
The following is a fictionalized version of the Exceed Galaxy's equipment, based on historical settings.
1. Lightning Buster Strike (LBS)
A variation of the Strike Gundam. Morgenroete, which was commissioned to produce the Lightning Buster's weapons, brought out this Strike Gundam as a re-production, but due to a certain incident that occurred concurrently, it becomes a machine with a deeper meaning.

Lightning Buster Strike / Strike Physical | かもりっく's Gunpla works