The VTCT trigger assembly is molded in the exact same polymers used by GlockA(R), for the ultimate in reliability, durability and compatibility. All pivot pins are 17-4 Stainless Steel, and splined for maximum retention when assembled. Because Tangodown didn't CNC machine any of the assembly in aluminum with the customary hard-coat anodize finish, the VTCT won't ever get hot after a long training session. The VTCT trigger is an insulator, not a heat conductor. It won't abrade or create wear that damages the frame, possibly disabling the trigger safety. Since all of the geometry is molded in place, there are no set screws or adjustments to fail, leaving you with a dead w Mfg: Tangodown