This is a 4BA conversion of the Harrows Libya 23g steel model. The threads were processed by Drizzle! There are some minor chips in the cuts, but since the original cuts were quite aggressive, they are about 90% of what they were when new. I've thrown it about 50 times in Count Up after the modification. Below are the specifications of the steel model. Product Details ■ Product Specifications Material: 90% Tungsten Length: 51.0mm Max Diameter: 6.8mm Barrel Weight: 23.0g Shape: Straight Cut: Ring Cut, Perennial Cut Standard: Hard Center of Gravity: Front