From Warhammer 40k - Lexicanum
The Accelerator Bow is a type of Kroot weapon.
These distinctive weapons are built with a Kroot Rifle at their core. When fired, the bow's curves crackle with energy, charging the loaded arrow's head. Effects of struck enemies vary depending on the type of ammunition used, such as Fused Arrows, Glide Arrows, and Voltaic Arrows.
- 1: Kill Team: Into the Dark Rulebook, pg. 54