Firearm trigger

Abstract

A trigger element moves between a released position and an actuated position, and a first sear element is pivotally connected to the frame and having a striker engagement surface. The first sear element moves between a position where the striker engagement surface restrains the striker in the cocked position, and one where the striker is enabled to move to the firing position. A sear link element operably connected to the trigger element and to the first sear element is movable between a restrained position where the trigger element is in a released position and prevents link movement, and in which the link restrains the first sear element, and a released position where the trigger element is in the actuated position, enabling link movement. Additionally, the link enables movement of the first sear element to the released position. Detent screws allow for tailoring aspects of the trigger pull.

I claim: 
     
         1 . A trigger assembly for a firearm having a striker movable between a cocked position and a firing position, the trigger assembly comprising:
 a cassette or frame;   a trigger element pivotally connected to the frame and movable between a trigger released position and a trigger actuated position;   a first sear element pivotally connected to the frame and having a striker engagement surface, the first sear element movable between a first restraining position in which the striker engagement surface restrains the striker in the cocked position, and a first released position in which the striker is enabled to move to the firing position;   a sear link element pivotally connected to the frame, operably connected to the trigger element and to the first sear element; and   the sear link element movable between a link restrained position in which the trigger element is in the released position and prevents link movement, and in which the link restrains the first sear element in the first restraining position, and a link released position in which the trigger element is in the actuated position and enables link movement, and in which the link enables movement of the first sear element to the first released position.   
     
     
         2 . The trigger assembly of  claim 1  wherein the first sear element is motivated to move to the released position by the striker. 
     
     
         3 . The trigger assembly of  claim 1  wherein the sear link element is motivated to move to the link released position by the first sear element. 
     
     
         4 . The trigger assembly of  claim 1  wherein the trigger element and the sear link element operably engage at a sear interface, such that movement of the trigger past a selected threshold enables rapid transition of the sear link to the link released position. 
     
     
         5 . The trigger assembly of  claim 1  including a safety lever operably connected to the sear link and movable between a first position enabling sear link movement and firearm discharge, and a second position preventing sear link movement and firearm discharge.