PSE Brute ATK. Engineered on our all-new ATK platform for better stability and rigidity at a lower price point, the PSE Brute ATK is smooth-drawing, hard-hitting, and deadly accurate. Engineered on PSEs new AF binary cam, the Brute ATK shoots up to 329 FPS, and is highly tunable thanks to PSEs patented Precision Buss Tuning System (PBTS). ATK series bows are also equipped with PSEs new stainless steel cable rod.