A professional training-level tungsten alloy dart barrel is a personal coach, tungsten content 80%-90%, straight-bomb-torpedo three-piece modular, 2BA quick-release interface thirty-second front-center-rear switch. Surface six-zone programmable texture: index deep ring groove sweat-lock, middle shallow knurl breathable, ring wave ridge release, palm root smooth unload, thumb-web micro-convex anti-slip, pinky blank decompress. Internal adjustable tail rings light-medium-heavy three sets, home reproducing venue drag. Quality industrial three-coordinate+high-speed camera, center deviation negligible, roughness Ra thousand-throw decay minimal. Side laser training log grid, every hundred throws checkmark, decade becomes technical growth history. Application covers club ranking and night practice, durability million cycles knurl non-collapse. Compared to professional, training modular stronger, allowing player simulate opponent rhythm; compared to entertainment, texture feedback more professional. This barrel accompanies player from bronze to king, always same set “old buddy”.
