Kimber of Oregon. I have two sets of them on Mausers, except the screw cap is a lever. they have held Zero for about thirty years.

"Do not blame Caesar, blame the people...who have...rejoiced in their loss of freedom....Blame the people who hail him when he speaks of the 'new, wonderful, good, society'...to mean ,..living fatly at the expense of the industrious." Cicero