I'm sure this has already been discussed, but I'm going to ask anyway. I would like to put a bolt release receiver sight on my 1903(I Think). My question is this: Does the sight come attached to a replacement bolt release or do yo have to modify one, and is there any modification of the stock for the slide required. I ask because my eyes are no longer good enough to use the barrel mounted rear sight. My biggest issue is that this is an all original, unmodified, and in very good condition rifle. I badly want to hunt with it, but have issue with the thought of irreversibly modifying it. Any help will be greatly appreciated.

Lance