Upgrade your AR platform with the Geissele Hi-Speed National Match Trigger Set - a single-package, competition-ready trigger assembly that includes one Hi-Speed trigger and three interchangeable spring kits (Hi-Speed Match, Hi-Speed DMR, and Hi-Speed Service). Engineered for accuracy, durability, and full adjustability, this set lets you tune stage weights, over-travel, and sear engagement for competition, hunting, tactical, or military-style use.Compact summary: fully adjustable stages, exceptional consistency, and three spring options to tailor pull weight and feel to your rifle and mission.Key Features Includes: 1 Hi-Speed trigger + 3 spring kits (Match, DMR, Service) Fully adjustable first & second stages, over-travel, and sear engagement Tunable for competition, precision tactical, or service use High durability and consistent, crisp breaks for repeatable accuracy Fits semi-automatic AR-15 / AR-308 pattern rifles with MIL-SPEC .154" trigger pins Geissele Part #: 05-181Spring Set SpecificationsService (CMP-approved) - Minimum total: 4.5 lb 1st Stage: 3.2 - 5.0 lb 2nd Stage: 0.5 - 1.5 lbDMR (Tactical/Military) - Total: 3.0 - 5.1 lb 1st Stage: 2.5 - 3.6 lb 2nd Stage: 0.5 - 1.5 lbMatch (High-Power/Precision) - Total: 1.9 - 3.4 lb 1st Stage: 1.5 - 2.5 lb 2nd Stage: 6.0 - 14.0 ozNote: Trigger pull weights are approximate and can vary slightly between rifles.