A system that allows a person to adjust the tension of the fire control mechanism of a firearm from outside the firearm so the firearm does not need to be disassembled to make such adjustments. The system has a modified mainspring housing that supports one or more spring engaging mechanisms which engage the sear spring of the fire control mechanism. In one configuration, first and second apertures extend through the housing body and an engaging device, such as a screw, is received in each aperture to contact different segments of the sear spring. From outside the firearm, the user moves the devices forward or rearward in the apertures to apply more or less force to the subject sear spring segment to adjust the tension of the fire control mechanism. The sear spring is modified so each engaged segment has an enlarged area that is contacted by its engaging device.

A fire control group has a receiver having opposed sidewalls defining a space configured to receive a fire control group, the opposed sidewalls each defining a pivot pin aperture, the pivot pin apertures being registered with each other, a fire control group including a trigger received in the space, the fire control group defining a transverse pivot pin passage configured to be registered with the pivot pin apertures of the receiver, the fire control group including a pivoting operational element, the fire control group including a pivot pin supporting the pivoting operational element and received in the transverse pivot pin passage and the pivot pin apertures, the firearm having a hand grip aft of the trigger and defining a screw aperture, and a grip screw engaging the hand grip and engaging the fire control group. The grip screw may occupy a medial plane of the firearm.

A fire control group has a receiver having opposed sidewalls defining a space configured to receive a fire control group, the opposed sidewalls each defining a pivot pin aperture, the pivot pin apertures being registered with each other, a fire control group including a trigger received in the space, the fire control group defining a transverse pivot pin passage configured to be registered with the pivot pin apertures of the receiver, the fire control group including a pivoting operational element, the fire control group including a pivot pin supporting the pivoting operational element and received in the transverse pivot pin passage and the pivot pin apertures, the firearm having a hand grip aft of the trigger and defining a screw aperture, and a grip screw engaging the hand grip and engaging the fire control group. The grip screw may occupy a medial plane of the firearm.

Adjustability of trigger pull force is enable by the use of a spring interfacing with a trigger shoe counterweight. The spring force is adjustable by use of a set screw interfacing with the spring. A pivot arm member acts between a trigger shoe counterweight and a firing pin release arm to fix the ratio of trigger shoe pull force and firing pin release arm force.

Adjustability of trigger pull force is enable by the use of a spring interfacing with a trigger shoe counterweight. The spring force is adjustable by use of a set screw interfacing with the spring. A pivot arm member acts between a trigger shoe counterweight and a firing pin release arm to fix the ratio of trigger shoe pull force and firing pin release arm force.

An interruptible electronic trigger system for firearms includes a trigger unit comprising an electromagnetic actuator operably coupled to the firing mechanism and a programmable trigger microcontroller. The actuator is changeable between a non-powered unactuated position and powered actuated firing position. Upon detecting user initiated trigger activity, the trigger microcontroller transmits a shot initiated signal to an adaptive optics unit of a fire control targeting system mounted to the firearm when the trigger activity exceeds a preprogrammed trigger setpoint. A targeting microcontroller returns a shot authorization signal to the trigger microcontroller after performing ballistics computations based on sensor input and displaying a corrected reticle on the optics unit sight for user visual alignment with the target. Multiple trigger setpoints may be programmed to confirm continued intent to fire. The trigger microcontroller may deactivate the actuator and permit manual firing when preprogrammed maximum trigger force/displacement limits are exceeded.

An interruptible electronic trigger system for firearms includes a trigger unit comprising an electromagnetic actuator operably coupled to the firing mechanism and a programmable trigger microcontroller. The actuator is changeable between a non-powered unactuated position and powered actuated firing position. Upon detecting user initiated trigger activity, the trigger microcontroller transmits a shot initiated signal to an adaptive optics unit of a fire control targeting system mounted to the firearm when the trigger activity exceeds a preprogrammed trigger setpoint. A targeting microcontroller returns a shot authorization signal to the trigger microcontroller after performing ballistics computations based on sensor input and displaying a corrected reticle on the optics unit sight for user visual alignment with the target. Multiple trigger setpoints may be programmed to confirm continued intent to fire. The trigger microcontroller may deactivate the actuator and permit manual firing when preprogrammed maximum trigger force/displacement limits are exceeded.

A trigger device is disclosed. The trigger device comprises a housing, a trigger, a reverser, and a first pull weight adjustment mechanism. The trigger is rotatably mounted in the housing via a trigger pivot pin. The trigger comprises a trigger tooth. The reverser is rotatably mounted in the housing via a reverser pivot pin. The reverser comprises a reverser tooth. The first pull weight adjustment mechanism is coupled between the trigger and the reverser to bias the trigger in a first direction and the reverser in an opposite direction. Actuation of the trigger causes the trigger to rotate in the opposite direction, the trigger tooth to engage the reverser tooth, and the reverser to rotate in the first direction.

A trigger device is disclosed. The trigger device comprises a housing, a trigger, a reverser, and a first pull weight adjustment mechanism. The trigger is rotatably mounted in the housing via a trigger pivot pin. The trigger comprises a trigger tooth. The reverser is rotatably mounted in the housing via a reverser pivot pin. The reverser comprises a reverser tooth. The first pull weight adjustment mechanism is coupled between the trigger and the reverser to bias the trigger in a first direction and the reverser in an opposite direction. Actuation of the trigger causes the trigger to rotate in the opposite direction, the trigger tooth to engage the reverser tooth, and the reverser to rotate in the first direction.

A repeating weapon includes a chamber with a chamber body movable between locked and unlocked positions, and a trigger mechanism with a trigger, a sear movable between cocked and half-cocked positions, a transfer element movable by actuation of trigger between a holding position to hold the sear in the cocked position and a release position to move the sear into the half-cocked position, and a breech catch element movable transversely to the chamber body to limit the axial movement of chamber during opening. A control cam is arranged on the chamber body for moving the breech catch element into a safe position when the chamber body is moved into the unlocked position, and a blocking element cooperating with the transfer element is arranged on the breech catch element for preventing movement of the transfer element into the release position when the breech catch element moves into the safe position.