An interesting product from RA-Tech called the Steel Variable Pull Stroke Trigger. Since it is variable, it allows you to make precise adjustments to the trigger to your preference as stock triggers do not allow for adjustments. It is made of two components, both CNC'd steel. This is compatible with the WE AR Gas Blowback Series as well as the WE HK416, G36 and SCAR GBB rifles. It is available as Type 1 or Type 2.