This is Jim Williams new design model with 80% tungsten. The feel of the barrel on your fingers is stronger, so you don't have to grip it tightly to make it fly. The black coating has two red lines making it a cool design.
This straight barrel is available in 22g, 23g, 24g and 25g weights and you can feel the difference at each weight. The barrel is knurled in front of the center, making it easy to find the grip position.