I think ya have an M8 Scabbard for the M7 Bayonet and it'll fit yer AR just fine unless ya have a post ban version...........
I'm gonna ping ya to a hero thread.....Stay Safe !
My heavy duty working blade is a Buck "Nighthawk" with a 7" blade. Black oxidized finish over stainless steel, terrific grip, best ergonomics ever IMHO. Thumb rest top vastly increases stabbing and cutting pressure. Takes a razor edge that is brutally sharp. You can cut wood, gut a deer or fillet a fish with this blade.
It came with a black cordura sheath I didn't like, so I made an epoxy/fiberglass one. Again, just wrap the knife in plastic, then wrap it in fiberglass cloth, and saturate it with epoxy. I made a belt loop out of the same one-piece fiberglass construction since it's a worn outside working blade.
Mine is all black. The part that's shown in green here is a softer grippy rubber.
![](http://worldwideknives.com/Buckknives/BU650OD.jpg)