Solid Stock Delrin machined muzzle for 2 or 3 band applications. These muzzles are CNC machined from solid stock Delrin material. 1” or 26mm Internal diameter fits most production speargun tubes such as Pathos, Salvimar, and Rob Allen. Pinch front wishbone through the muzzle for a tight-fitting band for either 14mm or 16mm bands. 316ss grade line anchor, line guide and barrel set screw included. Proudly Made in USA.