Keep your gun working at it's best, with this Wong Spear Guns Gun Kit. Kit includes: Handle, Trigger Mechanism, Loading Butt, Line Anchor, Line release, and Push Rod plate. Trigger Mechanism measures: 1 1/8" x 2 3/4" x 7/16". Daryl Wong trigger mechanism. Measures: 1 1/8" x 2 3/4" x 7/16". The trigger mechanism has a housing made of a polymer material commonly used in the military and aerospace industry.  It is a light, and strong and quiet.  Each sear and trigger is investment casted and heat treated.  It then goes through a pickling  process to give it a corrosion free coating.  After each assembly, the triggers are assembled by hand and are individually tested on a hydraulic tester to 600lbs.  These triggers test out to a maximum of 1200 lbs.