Looking for a sling that will fit an 870 with a vang front sling plate and a knoxx spec-ops stock. 2/3point doesn't matter..any suggestions?

Wilderness has what you need. Their site is here You can call them for specific recommendations with your set up, and they'll tell you which one to order. Probably could get something suitable from Spectre too (formerly CQB) but I really like the Wilderness slings (not seen the Spectre products in person, but I know they're very popular too). I'm running a Wilderness Single point on a Mesa Tactical swivel that replaces the rear receiver pin.