Geissele Automatics Hi-Speed Match Universal Trigger, Includes 1 Trigger and 3 Springs (for the Hi-Speed Match, Hi-Speed DMR and Hi-Speed Service Trigger), Black 05-181
Specifications:

Type	Trigger
Model	AR-15
Dimensions
Size
Material	Steel
Action
Trigger	Two Stage
Safety
Thread Pattern
Finish	Black
Bolt Type
Hand
Hammer Type
Max Capacity