Firearm with sear return delay mechanism

A firearm comprising:

• a sear with a sear tip, the sear movable between a stop-fire position, wherein a discharge mechanism is held by the sear tip against movement that would result in firing of a round, and a fire position, wherein the discharge mechanism is released by the sear tip to permit movement of the discharge mechanism to fire a round;
• and
• a sear return delay mechanism delaying the return of the sear tip to the stop-fire position from the fire position;
• wherein the sear must do work against the sear return delay mechanism to return to the stop-fire position from the fire position;
• wherein the sear return delay mechanism includes a movable mass, and to return to the stop-fire position from the fire position the sear does work against the sear return delay mechanism by moving the movable mass;
• wherein the movable mass is rotatably mounted in the firearm, and the sear return delay mechanism further includes:
• a cam plate pivotably mounted in the firearm and engaged with the movable mass such that pivoting of the cam plate results in pivotal movement of the movable mass, said cam plate having a cam track, wherein the sear includes a sear arm that moves upon movement of the sear and interacts with the cam track such that the sear arm pivots the cam plate as the sear moves from the fire position to the stop-fire position,
• wherein the sear arm interacts with the cam track through a cam pin that moves in the cam track.

A firearm comprising:

• a sear with a sear tip, the sear movable between a stop-fire position, wherein a discharge mechanism is held by the sear tip against movement that would result in firing of a round, and a fire position, wherein the discharge mechanism is released by the sear tip to permit movement of the discharge mechanism to fire a round;
• a sear return delay mechanism delaying the return of the sear tip to the stop-fire position from the fire position;
• a biasing mechanism forcing the sear tip to the stop-fire position;
• a firing mechanism actuated to move the sear tip to the fire position against the force of the biasing mechanism and thereafter permit the sear tip to return toward the stop-fire position under the force of the biasing mechanism;
• a trigger assembly releasably connected to a receiver, the receiver carrying the discharge mechanism, and the trigger assembly comprising:
• the sear,
• the sear return delay mechanism,
• the biasing mechanism, and
• the firing mechanism,
• wherein the firing mechanism includes a trigger engaged with the sear and, when engaged, pulled to move the sear tip to the fire position against the force of the biasing mechanism, the trigger thereafter disengaging from the sear to permit the sear tip to return toward the stop-fire position under the force of the biasing mechanism.