This is the Cressi Sub Comanche RAIL Freediving Scuba Diving Speargun Features: 28 mm (1.1) Diameter Barrel Design Eliminate Bending of Barrel Incredible Firing Precision Highly Compact, Hydrodynamic Point Low Band Position Optimize Forward Thrust, Guarantee Perfect Visibility Rapid and Precise Aiming Gentle Shaft Release System Ring for Line, Sternal Support for Reloading Dovetail Triggering for Reel 16mmDiameter Band w/Articulated Wishbone 6mm 304 Stainless Steel 17.4 PH Notched Shaft Single Flopper Barb Inox Pointed Tip Comanche has been the world champion spear gun in 1988, 1992 and 2004, and still today it is a fantastic, reliable and very precise spear gun. A favorite among sport fishermen who demand impeccable performance, zero problems and a minimum level of sophistication from their spear guns every time. This proverbially ergonomic and versatile butt is suitable for every type of fishing and shooting from any position. Smooth and fast coupling of the rod and cassette mechanism, tough, reliable and compatible with all types of shafts, tolerant of different heights, finishing and machining. Integrated, discreet and effective automatically retractable double loop line located on the corner between the trigger guard and the base of the barrel. "