This Extended PRS (Positive Retention Strap) was specifically made for the RRA 458.

This Extended PRS was designed to give owners of the Rock River Arms 458 upper a viable two point sling solution, or a method to secure the front of the weapon to their off hand side utilizing the URBAN-E.R.T. SLINGS Weapons Catch. The Extended PRS can be used on any free float tube or weapon stock with a circumference of 6-1/2".