The Geissele Super Dynamic Trigger is the semi-auto only version of a select-fire trigger that Geissele makes for customers in the U.S. Special Operations community. The SD is a non-adjustable combat trigger, with a stunningly smooth 1st stage and solid 2nd stage built for use in the adverse environment of battle. Suitable for Close Quarters Battle (CQB) and mid-range carbine work, the Geissele SD E is also the perfect trigger for Squad Designated Marksman (SDM) rifles. The Geissele SD-E trigger features tool steel construction with wire EDM cut sear surfaces. Total pull weight is 4.5 lbs (2.5lb 1st stage/2lb 2nd stage). Instructions are included. This trigger features a flat trigger bow for a consistent trigger feel regardless of finger placement. The flat trigger bow is also 0.141″ forward of a standard AR-15 trigger, resulting in an increased trigger reach for proper placement on the trigger finger.

Notes:

Combat: 2-1/2 – 3lb 1st stage, 2lb 2nd stage
Enhanced: 2.2 – 2-1/2lb 1st stage, 1.2lb 2nd stage

Specifications of Geissele SD E Trigger