Geissele Automatics was founded in 2004 by Bill Geissele – a competitive shooter who set out to make the best triggers on the market.
Bill worked with the Department of Defense to design the legendary Super Select-Fire trigger (SSF) – the M4 trigger of choice in the Spec-Ops community.
This led to 3 civilian variations of the SSF (designed for semi-auto firing):
Super Semi Auto (SSA) – tuned for close-quarters combat with a total pull-weight of 4.5#
Super Semi Auto Enhanced (SSA-E) – Tuned for long-distance shooting. Same as the SSA, except with a reduced total pull weight of 3.5#
Geissele 2 Stage (G2S) – Same design as the SSA, but lower cost (no laser engraving, different pin set)
These are combat-proven triggers and are widely regarded as some of the finest AR triggers ever designed.
Want to learn more about AR-15 triggers? Check out our article AR15 Trigger Upgrades – Is it Worth Doing a Trigger Job on My AR?