I just took delivery of a titanium three section polespear/handspear from Keltvic in Russia. It is very well made and surprisingly light, although a heavy polespear has more punch if you are shooting something big. The polespear is supplied with two rubber bands, a grey and a black one, the grey one being fitted. The tip thread used is a 7 mm metric thread and the titanium pole diameter is 14 mm. The three 70 cm sections give you a spear that is slightly over 2.1 meters long, that is without a tip. With just two sections it should be good for kids to use when poking around, plus the sliding friction trigger handle allows them to hold a cocked band. Experienced users usually cock the band immediately before striking, but kids don’t have that strength or the ability to hold a prolonged loaded grip so the sliding handle for them is a benefit. Otherwise one simply needs a centre flange to hang onto to prevent your hands slipping, especially if your gloves are slimy from handling previous victims.
I did not include the tip extension as it will be equipped with multi-prong tips (no escapees).
Interesting design. But unfortunately would be illegal in places where we're not allowed to use spearguns, like Bahamas.
Are the slip tips manufactured by them?
They make a standard polespear as their "Classic" edition. This is also in titanium.
I assume that they make the tips as well, here is a trident with floppers.
And here are a bunch of tips and extensions.