The 47 BJJ Coop

The 47 BJJ Coop is guided by John “Birdman” Finn, a 4th degree black belt in Brazilian Jiu-Jitsu under Jamie Cruz within the Renzo Gracie lineage. Since opening its doors in 2020 in Prospect-Lefferts Gardens, Brooklyn, the academy has focused on preserving technical precision and long-term training sustainability. Birdman’s approach is reflected in the gym’s emphasis on pressure-tested fundamentals and a culture where ego is set aside in favor of steady progress. The school also offers traditional Okinawan Karate under co-founder Anna Sweeney, a 3rd degree black belt in Ueshiro Shorin Ryu Karate and certified self-defense instructor, who integrates balance, breath, and decision-making skills into her classes. Classes at the 47 BJJ Coop are intentionally kept small to allow detailed feedback and personalized instruction. The BJJ program covers both gi and no-gi formats, with a curriculum designed to build a calm, flow-based grappling game that prioritizes movement and problem solving over brute force. Beginners are encouraged to learn safe training habits and communication on the mats, while more advanced students receive coaching aimed at refining technique and maintaining longevity in the sport. The karate offerings include beginner-friendly basics, green belt progressions, and self-defense strategies that emphasize practical application under stress. Training runs throughout the week with a schedule that supports a range of skill levels and interests. Alongside Brazilian Jiu-Jitsu, the academy offers dedicated classes on takedowns and traditional Okinawan Karate, maintaining a balance between grappling and striking arts. Visitors will find a thoughtfully curated space with a relaxed atmosphere, reflecting the gym’s roots as a community-based collective focused on consistent, honest training rather than competition hype.

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