- "Grappling line, paralyzing darts, repulsor. All designed to combat the abilities of the Jedi."
- ―Fenn Rau, describing the parts of a pair of Mandalorian vambraces
A grappling line functioned much like a whipcord thrower, but instead fired a glowing yellow energized line that could not be cut by a lightsaber. Mandalorian vambraces usually featured a grappling line. Sabine Wren used a grappling line to entangle Kanan Jarrus, who was able to slash at the line and free himself—though did not cut the line. Later, Sabine was able to fire the line accurately enough to retrieve the fallen Darksaber, in order to continue her duel with Kanan.
- Sabine Wren Operative Expansion (First identified as electro grappling line)