The BleuTec Acid Carbon Speargun is made of a carbon fiber monoblock body and muzzle. Also available with closed muzzle or tied on the muzzle bands, without additional charge.The key features of the speargun include:Body contoured shape for perfect movement in horizontal and vertical axis.Trigger Mechanism BleuTec (housing stainless steel 316 aisi, trigger & sear made of stainless steel 304 aisi).Full railed body.Mechanical line release system with automatic retraction.Equipped with anatomically shaped handle and right handed shooting type grip.Default setup:Open muzzle and tied to the muzzle versions are supplied with 2 bands 16mm Black Power, shaft BleuTec 6,5 mm Diamond with 3 shark fins from heat treated steel.Closed muzzle version is equipped with a pair of Bleu Power 17,5mm with fittings, shaft BleuTec 6,5 mm Diamond with treated slots from heat treated steel.Recommended setups for open muzzle and tied to the muzzle versions:2 bands 17,5 mm Black Power, shaft BleuTec 6,75 mm Diamond with 3 shark fins from heat treated steel.2 bands 14,5 mm Black Power, shaft BleuTec 6,5 mm Diamond with 3 shark fins from heat treated steel.Recommended setup for close muzzle version:A pair of Bleu Speed 19mm with fittings, shaft BleuTec 6,5 mm Diamond with treated slots from heat treated steel. Is it possible to change or adjust the setup of the speargun upon request. The carbon fiber products of BlueTec manufactured to order.The length from the trigger guard until the band's hole. The speargun is accompanied by a 5 year warranty on the body of the weapon and lifetime for the trigger mechanism.