Both will need physics bodies to pick them up. Is the scope is a duplicated version of my acog? If so you will need to set up the right material for it to work right.
As for the mag have you duplicated one of the premade ones and replaced the mesh with your own?
Sorry, i am on vacation right now (no comp) so i wont be able to help much until monday.
If you want to i can go over your issues on the live twitch stream on tuesday. Might be easier that way. Its hard for me to find the issue looking at pics.