Home » See all of our slings here! » Brown Bag Sling - no swivels needed   Brown Bag Sling Details  Lightweight and strong, it sized to fit carbine and similar firearms. The Brown Bag Sling is a carrying, maneuvering and shooting sling. The sling installs quickly, without the use of snaps, hooks or buckles that could mar your firearm. Simply put a double helix loop over the gun barrel, slide the butt-stock into the stirrup, and pull the strap. It is just that easy. List Price: $10.59 Price: $9.00