Finally got to take the WK180-C and the OneTigris Diablo Rifle Case Shooting Mat out! As requested, here's a little review of the mat:

The Good
- holds most rifles pretty darn well
- non-slip section holds bipod feet nicely in place
- loads of molle webbing
- ID window is a great place to put an FRT, or anything else
- high quality stitching holds up to a good shake
- strap clips are actually pretty durable, even though plastic

The Bad
- the shoulder strap is in a place that carries a little wonky
- the non-slip surface cracks below -30C (IMO pretty extreme weather)

The Ugly
- I want one more in sniper grey

Credit: @JimmyKillem, 1TG