I didn't get the Stag lower just the upper.
I have an Olympic Lower (now with Jewell trigger) that came with my K8 Mag.

I did get so shoot the Stag lefty upper though on Saturday, REAL fun.

I am just beaing lazy on the lower since I have a magpul stock and aftermarket grip that I would have to change out every time I shot a HP competition.

Eh, I might just get a White Oak Armament service rifle upper and see how it goes for a while. They still seem real nice and about $300 less than the White Oak Precision uppers.