It should be perpendicular. It's possible that the pin that comes forward out of the receiver is worn, broken, or bent. It's an easy repair for the few gunsmiths familiar with drillings.
You might look to see if it is bent at the tip. Look into where the flat on the barrels that goes into the slot on center top of the receiver for the crossbolt, and push the rifle selector forward to check it. The pin from the receiver pushes a spring loaded rod that extends into the crossbolt lock flange at the top and operates the sight blade. It's a more delicate repair if the rod in the barrels is bent or damaged. I've found the problem is usually with the rod out of the receiver. The rods in the receivers get bent and worn from people constantly closing the gun with the rod pushed out (rifle activated)...
I really appreciate you taking the time to respond. Your voice of experience seems to be correct. The rod appears to be bent. Now I need to figure out who can repair it in Alaska. Thanks again!
