This JBL shaft is for Mares Frontiersman, Scuba Pro Magnum 70, AB-Biller 36 Special, Cressi 70, Arbelete AR423, Dacor 7335 and JBL (JBL4D22/4D44) Spear Guns. The JBL7427 shaft is 27" (686 mm) long with a 5/16" (8 mm) diameter. Having spare parts for your gun or sling is the only way to assure you won't get skunked on a spear fishing trip. Constructed of corrosion resistant 17-4 (spring) stainless each shaft is hand-tuned for alignment then heat-treated for maximum hardness to reduce flex and provide optimum energy transfer.
OEM shafts for JBL, A.B. Biller, Mares, Scuba Pro, Arbalete, Dacor and Cressi mechanisms are milled to spec for a perfect fit and function. Adapt-A-Shafts are 6 mm threaded on both ends and accept 303 stainless adapters allowing you to customize length for just about any spear gun mechanism available.