Harkila Moose Hunter 2.0 Rifle SlingHarkila Moose Hunter 2. 0 Rifle Sling The Moose Hunter 2. 0 rifle sling is multi functional. You can use it as an ordinary rifle sling, or, by undoing the buttons, split it into dual straps. This lets you carry your rifle on your back, like a rucksack, for travelling over longer distances, or if you need your hands free for some other activity. The underside of the sling has a non slip surface, to stop it sliding off your shoulder, and the sling