The Geissele Super Dynamic-3 Gun (SD-3G) trigger is a semi-automatic-only derivative of the two-stage Super Select-Fire (SSF) combat trigger that Geissele Automatics produces for customers in the U.S. Special Operations Community. The SD-3G was developed to combine the SSF combat trigger?s match-grade semiautomatic performance with its smooth single-stage fullautomatic feel to make a fast, smooth, and robust trigger ideal for 3 Gun competition shooting. The new Geissele Super Dynamic - 3 Gun trigger has a super short trigger pull and a short reset so that rounds can be sent downrange as quickly as possible while still maintaining superb accuracy.