Tarnowskie Stowarzyszenie Kolekcjonerów Broni .357 is a community association in Tarnów, Poland, bringing together enthusiasts of firearms, sport shooting, military history, and collecting. Since 2017, it has promoted sporting marksmanship, interest in historical and contemporary firearms, and responsible, safe firearm use. The association offers members safety and shooting-technique training, opportunities to develop their skills, and a welcoming community for sharing knowledge and experience.

In cooperation with the PZSS-affiliated TKS LOK club, .357 organizes additional shooting disciplines at competitions, supporting participation, skill development, and member integration. It also holds shooting events, including skeet, MOP, and trap activities, and presents firearm collections at exhibitions. News, competition results, event reports, and photo galleries help members and visitors follow its activities. The association seeks partnerships with other clubs and organizations to promote shooting and arrange events for firearm enthusiasts. With an emphasis on education, safety, history, and community, .357 offers people interested in these fields ways to learn, participate, and connect.