The ornamental design for a weightliftingdevice with a releasable middle bar and an interchangeable squat barattachment, as shown and described.
FIG. 1 is a perspective view of a weight lifting device with a releasable middle bar and an interchangeable squat bar attachment, showing my new design.
FIG. 2 is a left side elevation view of the design of FIG. 1, where the right side elevation view is a mirror image thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken line showing of the weights in FIG. 1 is for the purpose of illustrating environment that forms no part of the claimed design.