Hammerhead Evolution 2 Speargun Evo2 Open Muzzle Railgun 110 cm Spear Gun Open Muzzle - accurate, with Helix Power System Pistol Grip - comfort and control Stainless Steel Parts - trigger, spear, side line release, saftey mechanism Hardened 17-4 Stainless Steel pinned shaft with shark tabs Carbon Fiber Barrel, Full rail, with Red Ambush Camo Wrap