So i recently aqquired a Husqvarna 1640 30-06 Mauser Rifle. I love it. However, i just put a nikon prostaff on it, and a couple days ago i realized that the iron sights/blade ( whatever ) near the tip of the barrel is gone. There is a rectangular patch of adhesive residue or something and some rust. it leads me to believe that piece was always there until recently. I DID however have it boresighted by the guy at four corners general store. so my question is, for boresighting, will that part normally be removed for it to be done? because at least if this piece is gone i wont feel like a such a douche knowing it wasnt my fault. And then theres a tiny chance the people at four corners have the piece...if they didnt get rid of or sell it already. i dont know. i just want that piece back!