Strike Industries will soon be selling a nifty gadget called the SlingCatch. It attaches to a pack or armor and keeps a rifle or shotgun sling from biting into your neck. SI told me they have not yet finalized the MSRP.
The Tactical SlingCatch has been designed with the input of Special Force Group operators to eliminate a problem that nearly ALL weapon slings share. This is the chaffing of the neck from the webbing material use in their construction. While some maybe less abrasive than others, such as tubular webbing and softer material than thicker canvas materials, all will cause irritation and chaffing over a short period of time. This known issue is magnified when wearing any sort of body armor or outer tactical vest (OTV).
The Tactical SlingCatch addresses the issue by keeping the webbing material away from the operators neck. It is attached and secured to the shoulder pad/strap of the vest by means of a heavy duty Velcro strap. The low profile design allows quick don and doff of the weapon sling while being virtually snag free when moving through heavy brush.