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.

The initial force needed to start the disengagement of the sear surfaces on the SSA-E is low and the force linearly increases at a low rate. This helps the shot to fall at the initial point of aim and aids in building shooter confidence in his weapons ability to put the rounds where his sight is pointing. The shooter to can slap through the trigger pull on close in shots but also set up a long range shot with a crisp trigger break.

A full force hammer spring is used for quick locktime and positive ignition of all types of ammo. The hammer is lighter than a standard AR15 hammer which favorably decreases locktime over a standard hammer from 8.5 to 5.1 ms and increases accuracy of the weapon.

The Geissele SSA-E has a pull weight of about 3.5 lbs. There is 2.3 lbs. on the 1st stage and 1.2 lbs. on the 2nd stage.