The Hammerhead Evolution 2 Aluminum Speargun Tube is a light stiff tube with 26mm inner diameter and 1.5mm wall thickness. One end of the tube is cut with an angle to precisely match the the angle built into the Evolution 2 speargun handle. The tubes have black anodized finish. Available in lengths from 50cm to 120cm. Track height is 4.5mm above the inner diameter.

These tubes will fit most standard 26mm ID parts, and a wider range of handles and muzzles which may require a little filing down the insert peg to reduce its diameter, or shimming to increase it, for a good tight fit.

The tubes are not plugged. Optional with a tube purchase are two compression rubber plugs which are used to seal it. All that's needed to install the plugs is an approximately 5/8" diameter rod to collapse the plug pushing at its center, thereby reducing its diameter and making it possible to slide it down the tube. If needed more rubber plugs are sold separately.