The character poster of actor Vasanth Ravi from Weapon was released on Thursday. The character poster features Vasanth's back profile with his head turned around. The poster's tagline read, "The Hunt Begins". Vasanth rose to fame with his performances in Rocky and Tharamani. 

Directed by Guhan Senniappan, the film is backed by MS Manzoor under his banner Million Studio. Billed as an action-thriller, Weapon also stars Sathyaraj. Guhan has previously directed Amazon Prime Video's first Tamil web series Vellai Raja and Sawaari (2016). The film's technical crew includes cinematographer Prabhu Rhagav, music composer Ghibran and editor Nash.