An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.

An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.

A trek pole engageable support system is provided allowing users to form a support for a camera, firearm, or other object needing steady positioning. A body of the support has at least one support member engaged at a first end which is configured to compressibly engage the distal end of a support pole at a second end. So engaged with a support pole the body provides elevated support to the object being supported.

A handheld measurement, search and safety device that includes a main frame having a handle, an extendable member that slides outwards from the main frame in measured increments, and an interchangeable support brace comprising either a buttstock or arm brace to allow responders to use the extendable member to survey hazardous materials at a distance, or a one-handed configuration used to survey hazard materials in confined areas. The handheld measurement, search and safety device includes a plurality of picatinny rails disposed on both the main frame and extendable member to removably mount a host of different field survey instruments and/or tactical accessories for detecting, locating, identifying, measuring, or sampling hazardous materials including radioactive materials or toxic chemicals.

A handheld measurement, search and safety device that includes a main frame having a handle, an extendable member that slides outwards from the main frame in measured increments, and an interchangeable support brace comprising either a buttstock or arm brace to allow responders to use the extendable member to survey hazardous materials at a distance, or a one-handed configuration used to survey hazard materials in confined areas. The handheld measurement, search and safety device includes a plurality of picatinny rails disposed on both the main frame and extendable member to removably mount a host of different field survey instruments and/or tactical accessories for detecting, locating, identifying, measuring, or sampling hazardous materials including radioactive materials or toxic chemicals.

An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.

An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.

An interface for coupling a bipod to a sling stud of a firearm forend. The interface can include two pawls that pivot to release or grasp the sling stud. The pawls can be biased upward via a detent that rides within a vertical aperture in a pivot holder. The pivot holder can move up and down within a vertical aperture in a mounting plate of the interface, and via this movement the pawls may be forced open or closed. A bottom surface of one or both pawls can include an irregular surface different portions of which interface with a top of the detent depending on a vertical position of the pivot holder within the aperture in the mounting plate.

An interface for coupling a bipod to a sling stud of a firearm forend. The interface can include two pawls that pivot to release or grasp the sling stud. The pawls can be biased upward via a detent that rides within a vertical aperture in a pivot holder. The pivot holder can move up and down within a vertical aperture in a mounting plate of the interface, and via this movement the pawls may be forced open or closed. A bottom surface of one or both pawls can include an irregular surface different portions of which interface with a top of the detent depending on a vertical position of the pivot holder within the aperture in the mounting plate.

This invention relates generally to the field of sporting and leisure activities such as hunting, cycling, and photography. A connector (10) for detachably connecting an object (12) to an article of equipment (14), the connector comprising a base (16) fittable on or to the article of equipment, or integral with the article of equipment, the base including one of a recess and an elongate projection, and the object including the other of a recess and an elongate projection, the connector further including slidable locking means (28) which slides transversely to and engages with the projection when the projection is inserted in the recess, to securely retain the projection within the recess until the slidable locking means is operated by a user to permit removal of the projection from the recess. One of the recess and projection may include cooperating magnetic means which encourages engagement of the projection within the recess.