The ornamental design for an accessoryattachmentloop for a firearm, as shown and described.
FIG. 1 is a front, top, left perspective view of an accessory attachment loop for a firearm attached to a firearm showing our new design;
FIG. 2 is a front, top, left view of the accessory attachment loop of FIG. 1;
FIG. 3 is a top plan view of the accessory attachment loop of FIG. 1;
FIG. 4 is a front elevation view of the accessory attachment loop of FIG. 1, the rear elevation view being a mirror image thereof;
FIG. 5 is a bottom plan view of the accessory attachment loop of FIG. 1;
FIG. 6 is a left side elevation view of the accessory attachment loop of FIG. 1; and,
FIG. 7 is a right side elevation view of the accessory attachment loop of FIG. 1.
The broken lines showing portions of the design in all figures are included for the purpose of illustrating environment and unclaimed features and forms not part of the claimed design.