Single barrel break-action trap shotgun

In a shotgun:

• a fore-end iron having a barrel lug-opening therethrough, said barrel lug-opening having an edge;
• a barrel having a barrel lug through said barrel lug-opening;
• latch means mounted on said fore-end iron and releasably engageable with said barrel lug to releasably secure said barrel to said fore-end iron;
• and adjustment means fixedly but adjustably mounted on said fore-end iron and engaged with said barrel lug to locate and maintain said barrel in a predetermined position relative to said fore-end iron.

A shotgun comprising:

• a receiver having front and rear ends;
• a barrel pivotally mounted at the front end of said receiver and manually movable between breech-open and breech-closed positions;
• an action locking bolt mounted on said receiver and movable into and out of engagement with said barrel between lock and unlock position, respectively;
• a lever mounted on said receiver and manually movable to effect movement of said bolt between lock and unlock positions;
• a trigger mounted in said receiver and manually movable from cocked to fired position;
• and an out-of-battery pin mounted in said receiver in engagement with said bolt, a biasing spring for biasing said out-of-battery pin in constant engagement with said bolt;
• said action locking bolt being operable when in unlock position to effect compression of said biasing spring and to effect positioning of said out-of-battery pin in interfering relationship with said trigger to prevent attempted movement of said trigger from cocked position to fired position.

A shotgun comprising:

• a receiver having front and rear ends;
• a barrel pivotally mounted at the front end of said receiver and manually movable between breech-open and breech-closed positions;
• a trigger mounted in said receiver and manually movable from cocked to fired position;
• an action locking bolt mounted on said receiver and movable into and out of engagement with said barrel between lock and unlock positions, respectively;
• a top lever rotatably mounted on said receiver and manually movable between lock and unlock positions to effect movement of said action locking bolt between lock and unlock positions, respectively;
• a firing pin mounted on said receiver and extending through ahole in said top lever and slidably movable between a retracted position and a fired position in response to movement of said trigger from cocked to fired position, said firing pin being in a fixed location relative to said barrel as said top lever rotates;
• and an out-of-battery pin mounted in said receiver and engaged with said action locking bolt, a biasing spring for biasing said out-of-battery pin in constant engagement with said bolt;
• said action locking bolt being operable when in unlock position to effect compression of said biasing spring and to effect positioning of said out-of-battery pin in interfering relationship with said trigger to prevent attempted movement of said trigger from cocked position to fired position.

A shotgun comprising:

• a receiver having front and rear ends;
• a barrel pivotally mounted at the front end of said receiver and manually movable between breech-open and breech-closed position,
• said barrel having bolt-receiving groove at its breach end;
• an action locking bolt slidably mounted on said receiver and movable into and out of engagement with said bolt-receiving groove in said barrel between lock and unlock positions, said bolt having transversely spaced recesses therein;
• a top lever mounted on said receiver and manually movable to effect movement of said bolt from lock to unlock position,
• said top lever comprising a generally cylindrical shank rotatably mounted in a cylindrical bore in said receiver and having a lower end extending into said recess in said bolt;
• said shank having an actuator-receiving groove in its lower end and a cam surface thereon, said shank further comprising a firing pin receiving slot extending transversely therethrough;
• a bolt actuator mounted in said actuator-receiving groove of said top lever shank and extending out from opposite sides of said shank to lie in said transversely spaced recesses, said bolt actuator being responsive to rotational movement of said shank to effect said movement of said bolt;
• biasing means mounted in said receiver and engaged with said cam surface on said shank to effect movement of said top lever from unlock to lock position;
• a firing pin slidably mounted on said receiver and extending through said firing pin receiving slot in said shank;
• a trigger mounted on said receiver and manually movable from cocked to fired position;
• and an out-of-battery pin mounted in said receiver in engagement with said action locking bolt and being operable when said bolt is in unlock position to prevent said trigger from moving from cocked to fired position.

A shotgun comprising:

• a receiver;
• a stock;
• means for detachably connecting said stock to the rear of said receiver;
• a fore-end iron pivotally connected to the front of said receiver and having a barrel latch opening therein;
• a releasable barrel latch mounted on said fore-end iron;
• a fore-end wood handgrip rigidly connected to said fore-end iron and having a barrel-receiving groove therein;
• a barrel having a barrel lug thereon and detachably mounted on said fore-end iron by engagement of said releasable barrel latch and said barrel lug, said barrel being disposed in the barrel-receiving groove but not in contact with said fore-end wood;
• a resilient heat-resistant low-friction member fixedly mounted on said fore-end wood and in tight frictional engagement with said barrel;
• an adjustably movable adjustment shoe mounted on said fore-end iron adjacent said barrel latch opening and engaged with said barrel lug to precisely position said barrel relative to said fore-end iron;
• a fire control mechanism detachably mounted in said receiver and including a trigger, a sear, a hammer, and a mainspring;
• an action locking bolt slidably mounted on said receiver and releasably engageable with said barrel;
• a manually operably top lever rotatably mounted on said receiver for operating said action locking bolt;
• a firing pin mounted on said receiver and extending through a hole in said top lever;
• an out-of-battery pin being positioned between said action locking bolt and said trigger to prevent the latter from being fired when said bolt is in unlock position;
• a cocking mechanism connected between said hammer and said fore-iron;
• an extractor/ejector on said barrel;
• and an extractor/ejector operating mechanism, including a telltale rod, mounted on said fore-end iron and operatively connected between said hammer and said extractor/ejector.