Firearm trigger mechanism

A trigger mechanism operable in a standard semi-automatic mode and in a forced reset semi-automatic mode for a firearm having a semi-automatic cycling action, comprising:

• a hammer having a hammer sear surface and a hammer hook and adapted to pivot on a transverse hammer pivot axis between a hammer set position and hammer released position, the hammer adapted to be pivoted rearward by rearward movement of a bolt means;
• a trigger member having a trigger member sear surface and adapted to move between a trigger member set position and a trigger member released position, cycling of the action causing the trigger member to be forced to the trigger member set position;
• wherein the trigger member sear surface and the hammer sear catch are in engagement in the hammer set position-and the trigger member set position-and are out of engagement in the hammer released position-and the trigger member released position;
• a disconnector having a disconnector hook for engaging the hammer hook and adapted to pivot on a transverse disconnector pivot axis;
• and
• a locking member adapted to be movable between a first position at which the locking member mechanically blocks the trigger member from moving to the released position when in at least one mode of operation and a second position at which the locking member does not mechanically block the trigger member allowing said trigger member to be moved to the released position and adapted to be moved to the second position by forward movement of the bolt means,
• wherein in the standard semi-automatic mode, rearward movement of the bolt means causes rearward pivoting of the hammer such that the disconnector hook catches the hammer hook, at which time a user must manually reduce pressure on the trigger member to free the hammer from the disconnector to permit the hammer and the trigger member to pivot to the hammer set position and the trigger member set position so that the user can actuate the trigger member to fire the firearm again, and
• wherein in the forced reset semi-automatic mode, rearward movement of the bolt means causes rearward pivoting of the hammer causing the trigger member to be forced to the trigger member set position, and the disconnector hook is prevented from holding the hammer hook, and thereafter when the bolt means reaches a substantially in-battery position or an in-battery position the user can actuate the trigger member to fire the firearm again.

A trigger mechanism for a firearm operable in at least a standard semi-automatic mode and a forced reset semi-automatic mode, comprising:

• a hammer having a hammer sear catch and a hammer hook and adapted to pivot on a transverse hammer pivot axis between a set position and a released position, the hammer adapted to be pivoted rearward by rearward movement of a bolt means;
• a trigger member having a trigger member sear and adapted to move between a set position and a released position, the trigger member being forced to the set position as a result of cycling action of the bolt means, such that the trigger member sear and the hammer sear catch are in engagement in the set position of the hammer and the set position of the trigger member and are out of engagement in the released position of the hammer and the released position of the trigger member;
• wherein the trigger member sear and the hammer sear catch are in engagement in the set position of the hammer and the set position of the trigger member and are out of engagement in the released position of the hammer and the released position of the trigger member,
• a disconnector having a disconnector hook for engaging the hammer hook and adapted to pivot on a transverse disconnector pivot axis;
• and
• a locking member adapted to be movably mounted, the locking member being movable between a first position at which the locking member mechanically blocks the trigger member from moving to the released position and a second position at which the locking member does not mechanically block the trigger member allowing the trigger member to be moved to the released position and adapted to be moved to the second position by forward movement of the bolt means,
• wherein in the standard semi-automatic mode, rearward movement of the bolt means causes rearward pivoting of the hammer such that the disconnector hook holds the hammer hook, at which time a user must manually reduce pressure on the trigger member to free the hammer from the disconnector to permit the hammer and the trigger member to pivot to the set positions so that the user can pull the trigger member to fire the firearm again;
• and
• wherein in the forced reset semi-automatic mode, rearward movement of the bolt means causes the trigger member to be forced to the set position, and the disconnector hook is prevented from holding the hammer hook, and thereafter when the bolt means reaches a substantially in-battery position or an in-battery position the user can actuate the trigger member to fire the firearm again.

A trigger mechanism for a firearm comprising:

• a hammer having a hammer sear catch and a hammer hook and adapted to pivot on a transverse hammer pivot axis between a hammer set position and a hammer released position, the hammer adapted to be pivoted rearward by rearward movement of a bolt means;
• a trigger member having a trigger member sear and adapted to move between a trigger member set position and a trigger member released position, the trigger member being forced to the trigger member set position as a result of cycling action of the bolt means;
• wherein the trigger member sear and the hammer sear catch are in engagement in the hammer set position-and trigger member set position-and are out of engagement in the hammer released position-and the trigger member released position;
• a disconnector having a disconnector hook for engaging the hammer hook and adapted to pivot on a transverse disconnector pivot axis;
• a locking member adapted to be movably mounted, the locking member being movable between a first position at which the locking member mechanically blocks the trigger member from moving to the trigger member released position and a second position at which the locking member does not mechanically block the trigger member allowing the trigger member to be moved to the trigger member released position and adapted to be moved to the second position by forward movement of the bolt means;
• and
• a safety selector adapted to be movably mounted to move between at least standard semi-automatic position and forced reset semi-automatic position, wherein in the standard semi-automatic position, rearward movement of the bolt means causes rearward pivoting of the hammer such that thereafter the disconnector hook holds the hammer hook, after which a user must reduce rearward pressure on the trigger member before the trigger member can be actuated to fire the firearm again, and
• wherein in the forced reset semi-automatic position, rearward movement of the bolt means causes the trigger member to be forced to the set position, the disconnector hook is prevented from holding the hammer hook, and thereafter, when the bolt means reaches a substantially in-battery position or an in-battery position, the trigger member can be actuated to fire the firearm again.

A trigger mechanism for a semi-automatic firearm, comprising:

• a hammer comprising a hammer hook;
• a disconnector comprising a disconnector hook for holding the hammer hook;
• a trigger member, wherein the trigger member can be is forced into a trigger set position responsive to rearward motion of a cyclic semi-automatic action of the semi-automatic firearm;
• and
• a locking member configured to move between a block position and a non-block position, wherein the block position mechanically blocks the trigger member from moving from the trigger set position to a trigger released position, wherein the non-block position permits the trigger member to be moved from the trigger set position to the trigger released position, wherein the locking member is moved into the block position during rearward motion of the cyclic semi-automatic action and moved into the non-block position during forward motion of the cyclic semi-automatic action, and wherein:
• in a standard semi-automatic mode, after cycling of the action and while the trigger member is in the trigger released position, the trigger mechanism is configured such that the disconnector hook holds the hammer hook, at which point, rearward pressure on the trigger member must be reduced before the trigger member can be actuated, and
• in a forced reset semi-automatic mode, the disconnector hook is prevented from holding the hammer hook, and the trigger member can be actuated when the cyclic semi-automatic action reaches a substantially in-battery position or an in-battery position.

A trigger mechanism for a semi-automatic firearm operable in at least a standard semi-automatic mode and a forced reset semi-automatic mode, comprising:

• a disconnector;
• a trigger member, wherein the trigger member is forced into a trigger set position responsive to rearward motion of a cyclic semi-automatic action of the semi-automatic firearm;
• and
• a locking member configured to move between a block position and a non-block position, wherein the block position mechanically blocks the trigger member from moving from the trigger set position to a trigger released position, wherein the non-block position permits the trigger member to be moved from the trigger set position to the trigger released position, wherein the locking member is moved into the block position during rearward motion of the cyclic semi-automatic action and moved into the non-block position during forward motion of the cyclic semi-automatic action;
• a safety selector, wherein the safety selector is selectable between at least the standard semi-automatic mode and the forced reset semi-automatic mode;
• and wherein:
• in the standard semi-automatic mode, rearward pressure on the trigger member must be reduced to disengage a hammer from the disconnector before the trigger member can again be actuated;
• and
• in the forced reset semi-automatic mode, the trigger member is forced to the trigger set position and can be actuated without reducing pressure on the trigger member to fire another round when the cyclic semi-automatic action reaches a substantially in-battery position or an in-battery position.

A trigger mechanism operable in a standard semi-automatic mode and in a forced reset semi-automatic mode for a firearm having a semi-automatic cycling action, comprising:

• a hammer having a hammer sear surface and a hammer hook and adapted to pivot on a transverse hammer pivot axis between a set position and released position, the hammer adapted to be pivoted rearward by a rearward phase of the semi-automatic cycling action;
• a trigger member having a trigger member sear surface and adapted to move between a set position and a released position;
• wherein the trigger member sear surface and the hammer sear surface are in engagement when the hammer and trigger member are each in their respective set position and are out of engagement when either the hammer or trigger member is not in their respective set position;
• a disconnector having a disconnector hook and adapted to pivot on a transverse disconnector pivot axis;
• and
• a locking member adapted to be movable between a first position at which the locking member mechanically blocks the trigger member from moving to the released position when in at least one mode of operation and a second position at which the locking member does not mechanically block the trigger member allowing said trigger member to be moved to the released position and adapted to be moved to the second position by a forward phase of the semi-automatic cycling action;
• wherein in the standard semi-automatic mode, the rearward phase of the semi-automatic cycling action causes a rearward pivot of the hammer to a position where the hammer hook is past the disconnector hook, the hammer sear surface is not in engagement with the trigger member sear surface, and, thereafter, rearward pressure on the trigger member must be reduced to permit the hammer and the trigger member to pivot to their respective set positions where the hammer sear surface engages with the trigger member sear surface, so the trigger member can be actuated to fire the firearm again;
• and
• wherein in the forced reset semi-automatic mode the disconnector hook is prevented from catching the hammer hook and the rearward phase of the semi-automatic cycling action causes (1) rearward pivoting of the hammer to a position where the hammer hook is past the disconnector hook, (2) the trigger member to be forced to its respective set position, and (3) the hammer sear surface to be not in engagement with the trigger member sear surface, and thereafter, the hammer forwardly pivots to its respective set position with the hammer hook passing the disconnector hook, the hammer sear surface engages with the trigger member sear surface, and when the forward phase of the semi-automatic cycling action reaches an in-battery position, rearward pressure on the trigger member the trigger member does not need to be released to actuate the trigger member to fire the firearm again.

A forced reset trigger mechanism, comprising:

• a hammer having a hammer hook and adapted to pivot on a transverse hammer pivot axis;
• a disconnector having a disconnector hook and adapted to pivot on a transverse disconnector pivot axis;
• a trigger member;
• and
• a safety selector adapted to be movable between a standard semi-automatic position and a forced reset semi-automatic position,
• wherein when the safety selector is in the standard semi-automatic position and the trigger member is rearwardly actuated, and after the hammer pivots rearward to a position where the hammer hook is past the disconnector hook, rearward pressure on the trigger member must be reduced to permit the trigger member to then be actuated to fire a firearm.

A forced reset trigger mechanism, comprising:

• a hammer having a hammer hook and adapted to pivot on a transverse hammer pivot axis;
• a disconnector having a disconnector hook and adapted to pivot on a transverse disconnector pivot axis;
• a trigger member;
• and
• a safety selector adapted to be movable between a standard semi-automatic position and a forced reset semi-automatic position,
• wherein, when in either position, when the trigger member is pulled rearward, cycling of a firearm action rearwardly pivots the hammer to a position where the hammer hook is past the disconnector hook,
• wherein if the safety selector is in the standard semi-automatic position, rearward pressure on the trigger member must be reduced to permit the trigger member to then be actuated to fire a firearm, and
• wherein, if the safety selector is in the forced reset semi-automatic position, the trigger member is forced to move to a full reset position against rearward pressure on the trigger member and the rearward pressure on the trigger member does not need to be reduced to actuate the trigger to fire the firearm.

A forced reset trigger mechanism, comprising:

• a hammer having a hammer hook and adapted to pivot on a transverse hammer pivot axis;
• a disconnector having a disconnector hook and adapted to pivot on a transverse disconnector pivot axis;
• a trigger member;
• and
• a safety selector adapted to be movable between a standard semi-automatic position and a forced reset semi-automatic position, wherein, when in either position, when the trigger member is pulled rearward, cycling of a firearm action rearwardly pivots the hammer to a position where the hammer hook is past the disconnector hook,
• wherein, if the safety selector is in the standard semi-automatic position, rearward pressure on the trigger member must be reduced to permit the trigger member to then be actuated to fire a firearm, and
• wherein, when the safety selector is in the forced reset semi-automatic position, the hammer contacts the trigger member and forces the trigger member to move to a full reset position against rearward pressure on the trigger member and the rearward pressure on the trigger member does not need to be reduced to actuate the trigger to fire the firearm.

A forced reset trigger mechanism, comprising:

• a trigger member configured to pivot about a transverse pivot axis and having opposing lateral side surfaces;
• and
• a disconnector disposed laterally adjacent to the trigger member,
• wherein the trigger member includes a reduced-thickness region defined at one of the opposing lateral side surfaces, and the disconnector is received at least partially within the reduced-thickness region such that the trigger member and the disconnector collectively define an overall lateral width.

A forced reset trigger mechanism, comprising:

• a trigger member configured to pivot about a transverse pivot axis;
• and
• a disconnector positioned laterally adjacent to the trigger member,
• wherein the trigger member defines a lateral accommodation space, and the disconnector occupies at least a portion of the lateral accommodation space such that the trigger member and the disconnector overlap laterally.

A forced reset trigger mechanism, comprising:

• a hammer having a hammer hook;
• a disconnector having a disconnector hook;
• a trigger member;
• and
• a safety selector adapted to be movable between a standard semi-automatic position and a forced reset semi-automatic position, wherein when the safety selector is moved from the standard semi-automatic position and into the forced reset semi-automatic position, the disconnector is moved into a position where, after the hammer hook passes the disconnector hook during firearm cycling, a reduction in rearward pressure on the trigger member is not required to fire a next shot.

A forced reset trigger mechanism, comprising:

• a hammer having a hammer hook;
• a disconnector having a disconnector hook;
• a trigger member;
• and
• a safety selector adapted to be movable between a standard semi-automatic position and a forced reset semi-automatic position, wherein when the safety selector is moved from the standard semi-automatic position and into the forced reset semi-automatic position, a portion of the safety selector moves the disconnector into a position so as to prevent the disconnector hook from catching the hammer hook where, after the hammer hook passes the disconnector hook during firearm cycling, a reduction in rearward pressure on the trigger member is not required to fire a next shot.

A trigger mechanism operable in a standard semi-automatic mode and in a forced reset semi-automatic mode for a firearm having a semi-automatic cycling action, comprising:

• a hammer, having a hammer sear surface and a hammer hook, adapted to pivot on a hammer pivot axis between a hammer set position and a hammer released position, the hammer adapted to pivot rearward by a rearward phase of the semi-automatic cycling action;
• a trigger member, having a trigger member sear surface, adapted to move between a trigger set position and a trigger released position;
• wherein the trigger member sear surface and the hammer sear surface are in engagement when the hammer and trigger member are both in their respective set position and are out of engagement when either the hammer or trigger member is not in its respective set position;
• a disconnector, having a disconnector hook for engaging the hammer hook, adapted to pivot on a disconnector pivot axis;
• and
• a locking member adapted to be movable between a first position, where the locking member mechanically blocks the trigger member from moving from the trigger set position to the trigger released position, and a second position, where the locking member does not mechanically block the trigger member;
• wherein said locking member is adapted to be moved from said first position to said second position by a forward phase of the semi-automatic cycling action;
• whereas, in the standard semi-automatic mode, the trigger mechanism is configured such that rearward pressure on the trigger member causes the trigger member to move from the trigger set position toward the trigger released position, this movement causes the hammer to move from the hammer set position to the hammer release position, thereafter the hammer is positioned to pivot rearward;
• whereas, the semi-automatic cycling action rearwardly pivots the hammer to a position where the hammer hook is below the disconnector hook;
• following rearward pivot of the hammer from the hammer release position and while there is rearward pressure on the trigger member, the hammer hook is configured to engage the disconnector hook, and thereafter the rearward pressure on the trigger member must be reduced to allow the hammer hook to pivot forward above the disconnector hook and for the trigger member sear surface to engage with the hammer sear surface;
• whereas, in the forced reset semi-automatic mode, the trigger mechanism is configured such that the disconnector hook is rearwardly displaced such that it cannot engage the hammer hook and rearward movement of the hammer causes the trigger member to move from the trigger released position to the trigger set position despite rearward pressure on the trigger member;
• and
• whereas thereafter, the hammer returns to the hammer set position such that the hammer sear surface and the trigger member sear surface are engaged.

A forced reset trigger assembly for installation within a fire control pocket of a firearm, comprising:

• a trigger housing configured to be receivable within the fire control pocket;
• a trigger member pivotally supported by the trigger housing;
• a locking member movably supported by the trigger housing and movable relative to the trigger member, the locking member movable between:
• (a) a blocking position in which movement of the trigger member is prevented;
• and
• (b) a non-blocking position in which the trigger member is permitted to move;
• and
• a selector having at least two discrete operating positions including:
• (i) a standard semi-automatic position;
• and
• (ii) a forced-reset position in which the trigger assembly operates in a forced reset firing mode.

A forced reset trigger mechanism, comprising:

• a trigger member configured to pivot about a transverse axis;
• a hammer;
• a disconnector operatively associated with the trigger member and the hammer;
• and
• a locking member operatively associated with the trigger member,
• wherein cycling of the action causes the trigger member to be forced to the set position in at least one operating mode;
• and
• wherein the trigger mechanism is configured such that, when combined with a selector having an alternate selectable position, the trigger mechanism is enabled for a forced reset operating mode corresponding to the alternate selectable position.

A forced reset trigger mechanism, comprising:

• a trigger member configured to pivot about a transverse axis;
• a hammer;
• a disconnector operatively associated with the trigger member and the hammer;
• a locking member operatively associated with the trigger member;
• wherein cycling of the action causes the trigger member to be forcibly returned to a set position in at least one operating mode;
• and
• wherein the trigger mechanism includes a selector interface structured to cooperate with a selector having at least two discrete selectable positions including:
• (i) a standard semi-automatic position;
• and
• (ii) a forced-reset position,
• such that rotation of the selector to the forced reset position enables said forced reset operating mode.

A forced reset trigger mechanism, comprising:

• a trigger member pivotable about a transverse axis;
• a hammer;
• a disconnector operatively associated with the trigger member and the hammer;
• a locking member operatively associated with the trigger member;
• wherein cycling of the firearm action causes the trigger member to be returned to a set position;
• and
• wherein the trigger mechanism includes a selector interface structured to cooperate with a selector rotatable between at least two discrete positions including:
• (i) a semi-automatic position in which the trigger resets without forced forward drive;
• and
• (ii) a forced-reset position in which cycling of the action positively drives the trigger member forward to the set position.