I usually line up one “base ring” bolt hole with one mag plate bolt hole using a sishkabob stick.. after the first bolt is in the rest line up easy. Base ring is flat side up taper side down ..I think…. but if you are not certain wait for confirmation by others . oil the cam oiler wick ! I use 2 drops GC oil
…clip is $$$$ ! don’t loose it
What is GC, and GC oil?