Geissele Automatics was established in 2004 as a manufacturer of trigger mechanisms for the AR-15 rifle. Rely on Geissele when you expect superior performance, quality, and reliability.

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: National Trophy, NTIT and all Excellence In Competition matches. Service Rifle competitions require military-based weapons to meet certain criteria, one of which is a minimum trigger pull weight of 4.5 lbs. The Service Rifle Trigger includes an exclusive 5-Coil trigger spring which will give a nominal 4 lbs. on first stage. The Service trigger pull weights are biased with most of the pull weight on the first stage. This will allow a light second stage with an icicle-sharp break, effectively giving your weapon a match-grade trigger let-off.