Most Spearguns are made of 3 basic materials Metal Aluminum and Wood. Each has it's own benefits. 

Wood: Wood guns are preferred by many experienced spearos and spearing champions. AB Biller wood guns are often their choice. Why choose wood? It's beautiful. Which wood is best for me? It's a matter of which look you prefer. There are three types of wood choices Mahogany, Padauk and Teak. AB Biller Mahogany guns have 3 coats of polyurethane that give a nice shine mahogany wood. Padauk has a deep cherry color with swirly, interlocking grains. Teak is a highly valued wood with a light brown color accentuating the grains in the wood. Both Teak and Padauk are hand rubbed with boiled linseed oil giving the guns a perfect finish. There are practical reasons to buy a wood gun. AB Biller wood guns are more accurate, quiet and neutrally buoyant for easy handling underwater.

Versatility: Are you fishing in limited visibility, or crystal clear waters? Hunting for big fish or smaller fish, fast swimmers or fish hiding in the rocks and wrecks? AB Biller guns can be easily altered to make the perfect gun. A spearo can easily change shafts for either speed, distance or power. Most guns have shafts that can accommodate an extra power band for added power or distance. The majority of AB Biller guns come with threaded shafts so tips can be changed in an instant. As a underwater hunter you can simply modify all AB Biller guns to meet a wide variety of situations.