Abstract: A connecting device for connecting straps in a shoulder harness for carrying a handgun is a flat plate with a slot for forming a flat fold in a first strap, and first and second pairs of slots arranged in a triangular pattern with the fold forming slot for retaining portions of the strap on opposite sides of the fold flat against the plate. The plate has an additional opening for connection to another strap, for example to fasten the folded strap to a wearer's belt below the arm to avoid chafing, or to pivotally secure the plate to a second, identical plate to form a pivotal connection between opposite arm straps. In the first case, the plate has an additional slot parallel to the fold forming slot for receiving an additional strap threaded through the additional slot. Preferably, the plate also has an opening for optionally receiving a pivotal connector extending through a corresponding opening in another identical plate to pivotally secure the plates together.