is a primary supplier for OEM Winchester parts and often provides grouped component photos (like the trigger guard assembly) which act as partial diagrams.
The trigger group is a "drop-in" style. While the diagram shows individual springs and sears, most hunters treat the trigger assembly as a single unit unless performing a specific spring swap for a lighter pull. ⚠️ Safety First Before referencing any diagram or removing pins: Winchester Sx4 Parts Diagram
Designed for quick removal to access the gas system for maintenance. Parts & Maintenance Resources is a primary supplier for OEM Winchester parts
Removable as a single unit by popping out two pins. Winchester Sx4 Parts Diagram