Built on the chassis of the Geissele SSA, the Super Semi-Automatic Enhanced (SSA-E) is a 3.5lb non-adjustable combat trigger that provides enhanced control and weapon accuracy while maintaining the robustness and reliability of our combat-proven two-stage trigger. The SSA-E’s reduced first and second stage pull weights result in a trigger with a smooth, light first stage take-up and a crisp, candy cane-like second stage break. The SSA-E is ideal for use in precision Squad Designated Marksman type rifles where weapon accuracy and reliability are critical and a non-adjustable drop in trigger is desired.  Mil-Spec pin size