The Geissele Super SCAR trigger is a semi-automatic trigger that Geissele has developed as a retrofit for the FN SCAR 16 and FN SCAR 17. The Geissele Super SCAR trigger is designed to only fit into the standard polymer trigger housing manufactured by FN. The SCAR trigger is a non-adjustable, two-stage trigger but it is not a Match trigger. The Geissele SCAR trigger is ideally suited for Close Quarters Battle (CQB) and mid-range work. Comes with Aeroshell #6 Lubricant. Mfg: Geissele Automatics SPECS: The Geissele SCAR has a total pull weight of about 4.5lbs - 2.5lbs on the first stage and 2lbs on the second stage. The pull weight and sear engagement are not adjustable by the shooter.