Idaho allows percussion caps and peep sights. Caps must be visible and exposed to the weather when it's cocked. Lead non-jacketed bullets are ok but no sabots. In all, it pretty much limits you to Kentucky or Hawken style rifles.
But back to the arrows...Idaho has an archery regulation that prohibits the use of arrows where the broadhead does not precede the nock and shaft. Years ago someone invented an arrow with the head at the rear. I've never seen one, or even a picture of one, so I can't imagine what it looked like. I started bowhunting in the 60's and it was before that. Whatever it was, it's prohibited. My Google-foo failed to find a pic of one.
I said earlier that Idaho allows tritium sight pins. That was an error. I meant to say fiber optics sights. Tritium is prohibited.
