Looking for Speargun ... dont need to look so far.
You can get good brands ie. Picasso..Omera...etc in Singapore.
Personaly I hope that Scuba diver will use sling insted of speargun .... Speargun is for Freediver.
Sling is much more challenging, u need to get close to the fish .... no worries about fast kill as U have plenty of air.
Do it at mid water, away from the reef....Select .... get close...wait for the moment... dont let the fish sees ur eyes....shoot & the fun begins.
Go for mid water diving where the fish are free to move about ... den call urself a hunter.
Ni kena practice nih...dengar theory pun dah rasa macam penat jerk....Hah...pe lagi snafu, pool cheras la, comrade jadik target...