Received the replacement Hyperfire flywheel cage today : r/Nerf
Worker Metal Flywheel Cage for Regulator and Hyperfire - Blaster-Time
Worker MOD Motor Metal Flywheel Canted Cage Kit for Nerf Hyperfire Modify Toy | eBay
Hyperfire pistol complete!! Krakens in the flywheels, Valkyrie in the pusher, and my own select fire board. Running around 14 darts per second. I don't know the FPS but it hits hard.