The Geissele Hi-Speed National Match Trigger Set 05-181 is an adjustable two-stage trigger designed for AR-platform applications where users need control over first- and second-stage pull characteristics. Manufactured by Geissele Automatics, this trigger set provides adjustment points for first-stage and second-stage pull weight, sear engagement, and over-travel. The Geissele National Match Trigger includes three interchangeable spring sets, allowing the configuration to be selected according to the intended application. The included options are the Service Rifle, Match Rifle, and Designated Marksman Rifle spring sets. Each spring set has different characteristics and is intended for a specific type of use. The Service Rifle Spring Set is intended for NRA High Power Service Rifle competition configurations and is designed around competition requirements that specify a minimum trigger pull weight. The Match Rifle Spring Set is intended for highly customized AR-15 competition rifles where trigger settings can be configured according to the shooter's preferences and applicable rules. The Designated Marksman Rifle Spring Set is intended for applications where trigger pull weight is not subject to the same competition restrictions. The two-stage design provides a defined first stage followed by a second-stage release. Adjustment capability allows users to configure the trigger within the manufacturer's specified parameters. The included spring sets also give this Geissele Trigger greater configuration flexibility without requiring separate trigger assemblies for each setup. For customers looking for a Geissele Automatics trigger with multiple spring configurations and adjustable trigger characteristics, the Hi-Speed National Match Trigger Set provides a purpose-built option for compatible AR-platform builds. Features: Adjustable two-stage trigger First- and second-stage pull adjustment Adjustable sear engagement Adjustable over-travel Includes three spring sets Service Rifle spring set Match Rifle spring set Designated Marksman Rifle spring set Geissele Automatics Geissele Hi-Speed National Match Trigger Set 05-181