this is how locals handle this situation: with a little nail, copper in this case, heated and inserted into the muzzle. A wrap of line keeps the spear in place. The tension is provided with the bungee. I tried this over the weekend on a 5 hour dive and found it comfortable with no loss in accuracy, I think
The line DOES kink on that wrap, but the wear or breakability is probably no worse than the wear at the spear attachment point or crimps.
I have seen some guns with this idea somewhere.
COMMENTS PLEASE.
