This is the Rob Allen Aluminum Tuna Railgun Speargun with LP Closed Muzzle - ALL LENGTHS Features: Aircraft grade aluminum Wall thickness of 1.45mm Mechanism is manufactured from glass reinforced nylon Solid 316 stainless steel sear LP Closed Muzzle Includes 7mm shaft Rob Allen aluminum railbarrels have the same dimension as the carbon barrels. The rail level lines up with the profile of the mechanism and the muzzle. The integral rail is part of the barrel, thus increasing stiffness and reducing flex. This makes the guns deadly accurate. The rail barrel is manufactured from aircraft grade aluminum with a wall thickness of 1.45mm and the mechanism is manufactured from glass reinforced nylon and has a solid 316 stainless steel sear. Rob Allen Aluminum Railguns are available in lengths from 0.7m to 1.4m.
