Hi-Speed National Match Triggers - Large Pin Series Geissele Automatics currently offers three large pin Hi-Speed trigger products. These adjustable triggers are specially designed for competition, hunting, tactical, and military use, where both accuracy and robustness are critical. As an adjustable trigger, the first and second stage weight distribution, as well as, total pull weight, over-travel, and sear engagement are all to be tuned to the shooters preference. The Geissele Service Trigger: The Geissele Hi-Speed Service Rifle Trigger is designed for NRA High Power Service Rifle competition. It is an approved trigger for use in CMP sanctioned competitions such as: Mfg: Geissele Automatics