This is a Allen Sling known as the Baktrak, model 8385.
The Allen BAKTRAK(R) Bullet Sling has a soft molded rubber tread grip back for Extreme Grip that reduces sling related noise. This one hand" quick adjusting sling has a cushioned fit" four elastic loops to hold rifle cartridges" and swivels that are tested to 300 pounds.
Features:
Four elastic loops for rile cartridges
Quick adjust sling
