Also known as: ソードインパルスガンダム
ZGMF-X56S/β Sword Impulse Gundam
Analogous to the Sword Strike Gundam, it is the close-range combat/demolition package for the Impulse Gundam. It adds a pair of large anti-ship beam swords (unlike the former, which is only equipped with one) as its primary weapons and a pair of beam boomerangs. Its Variable Phase Shift armor colors are different from that of the base Impulse (as well as its flight and high mobility form) and is now using a red, black and white color scheme instead.