Speargun Shafts: It is important to fit your speargun with the correct spear shaft. The thicker your spear shaft is, the more power it will have pushing through objects. Therefore, if you are hunting big pelagic fish you will want a thick speargun shaft, such as an 8 mm shaft.
It's important to remember that thicker shafts, if used around the reef or rocks, will hit the reef or rocks with more impact and could therefore become damaged or bent. If you are just starting out a 6.5 mm or 7 mm speargun shaft is ideal and will provide plenty of punch while still surviving accidental contact with rocks or reef.
When ordering, please remember, the listed sizes are the length of shaft you are ordering, not the measurement of the gun it is intended to fit. Please ensure you measure your existing shaft and re-order that size.