A good spearfisherman tries not to bend or break his shaft, but a great spearfisherman knows that sometimes life happens, and brings an extra. This butt piece works together with the light bracket seen here to hold the back end of two spare shafts, so that you are never left without a weapon. Will also work with these shaft holders seen here. This spare shaft holder fits spearguns from AB Biller, JBL, and others.
