Hi,I put this question on “Vintage” but decided perhaps it would get an answer here…
I recently purchased a Colt [ Hakko] 3x20 carry handle mount scope and am wondering what the large slot head screw on the side opposite the windage knob is for? I printed a copy of Colt’s instruction pamphlent but it does not mention it. I had the same type scope many years ago but either don’t remember or never knew then either. Thanks for any help.
Macon