The New KOAH BLUEWATER GUN Is built for power. It now has 30% wider body with aggressive front and waist taper. Internal ballasting paired with the new VBS (VARIABLE BALLAST SYSTEM) allow you to adjust for the perfect ballast to counter act recoil and achieve your level of stock balance. Aluminum AR base handle with rubberized Houge grip for strength and ergonomic comfort. Comes with 5/16 shaft, (4) 5/8 power bands and standard break away.