The Geissele Super Select-Fire (SSF) Trigger is a select-fire combat trigger that Geissele Automatics developed for the U.S. Special Operations Community. The SSF is a non-adjustable combat style two-stage trigger. In semi-automatic mode, the SSF is a precision two-stage trigger that allows precise and accurate trigger control. In fully-automatic mode, the SSF is a single-stage trigger with a smooth, continuous trigger pull and abrupt hammer release. Specifications for Geissele SSF Super Select-Fire Trigger: Color: Black 1TO-ART-SSFTR-05-102 UPC#: 854014005106