Two stage match trigger assembly

Details Two stage match trigger assembly Two stage match trigger assembly

1997-12-15

1999-07-20

Jordan, Charles T.

Firearms

Firing mechanism

Rearward sliding breech bolt

42 6901, 42 4201, 42 4203, 42 65, F41A 300

Patent

active

059242310

ABSTRACT:
A two stage match trigger in which rearward movement of the trigger causes rearward movement of the sear in order to release the hammer. Rearward movement of the sear is resisted by a first stage spring plunger and by a second stage spring plunger. During initial travel of the trigger/sear, only the first stage spring plunger resists motion of the sear. At a point when the sear is close to disengaging from the hammer, the sear encounters the second stage spring plunger, thereby encountering resistance from both the first and second stage spring plungers. The effect produced is an increased force necessary to pull back on the trigger after the sear engages the second stage spring plunger. This provides cues to the shooter that the sear is nearing disengagement from the hammer. Therefore, any further movement of the trigger will cause the rifle to fire. The first stage spring plunger is placed at a greater distance from the trigger than the second stage spring plunger, creating a longer lever arm between the two devices and thereby allowing for a much lighter force to move the trigger than in prior art trigger assembly designs. This lighter pull force is very advantageous when the trigger assembly is used in match competition.

REFERENCES:
patent: 2626476 (1953-01-01), Miller
patent: 3152418 (1964-10-01), Charron
patent: 3797154 (1974-03-01), Seecamp
patent: 3889412 (1975-06-01), Filecci
patent: 4937964 (1990-07-01), Crandall
patent: 5501134 (1996-03-01), Milazzo et al.
patent: 5696346 (1997-12-01), Erning
patent: 5797206 (1998-08-01), Vitorino

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