Alsiel's Nector Rifle.
A Nector Rifle is a long-range weapon used by a few Valiancers in the Buddy Complex anime.
Overview
Luxon Next, Bradyon Next, and Karura firing their Nector Rifles.
A Nector Rifle is powered by Nectoribium, and shoots beams of Nector energy. They are usually bulky and heavy, and therefore only a few Valiancers can make use of this. However, the Coupling Valiancers, Luxon Next, Bradyon Next, Karura, and Nergal, have lightweight models.