I claim the ornamental design for a handcuff accessory pouch, as shown and described.
FIG. 1 is a top front isometric view of a handcuff accessory pouch showing my new design;
FIG. 2 is a top rear isometric view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom of plan view thereof.
The dash-dash broken lines depict stitching that forms no part of the claimed design. The dot-dash broken lines depict portions of the handcuff accessory pouch that form no part of the claimed design.