Geissele Automatics was established in 2004 as a manufacturer of trigger mechanisms for the AR-15 rifle. Rely on Geissele when you expect superior performance, quality, and reliability.
This is a semi-automatic-only version of Geissele Automaticss Super Select-Fire trigger. The large pin dimension is 0.169 inches, whereas the standard pin dimension is 0.155 inches. The SSA Large Pin is a 4.5lb. non-adjustable combat trigger that is a precision two-stage trigger and allows precise and accurate trigger control. The SSAs two-stage design allows the trigger to be light enough for accurate and precise shots, but forgiving enough for CQB. The SSA is safety certified by Crane Naval Surface Warfare Center. It is recommended for demanding applications such as Law Enforcement use, Close Quarters Battle (CQB) and mid-range carbine work.
Features and Specifications:
Manufacturer Number: 05-123
For use in Colt AR rifles manufactured from 1990 to 2009
Pull weight of about 4.5lb. 2.5 lbs on the first stage and 2lb on the second stage
There are no adjustment screws to come loose
All springs are captive; they will not get lost during disassembly
in the field
The entire trigger can be dissembled for cleaning (no rivets or
The trigger can be installed without removing the safety
AR-15/AR-10 rifle systems
Note: triggers are designed for mil-spec AR-15/M4 carbine rifles. Our AR-15 triggers are not compatible with the Sig MPX/MCX weapons.