Focusing coil

Focusing coils were components used in blaster weaponry. The coils helped the weapon maintain a cohesive blaster bolt during the firing process. Blasters such as the Defender sporting blaster pistol had focusing coils in their final stage collimator barrels, while weapons such as the T-21 light repeating blaster and the E-Web heavy repeating blaster had the coils spread along the length of the barrel.

Text and facts from the “Focusing coil” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.