Well I have figured out a simple way to get those pesky screws that the French put on their rifles. I had to buy a good snap ring plier set that had the interchangeable bits. I used 2 of the bits and a set of channelock pliers. See the photo's. The bits fit well and the channelock's hold the bit tight enough that I had no issues with moving that could cause scratching.
Just make sure the pliers are tight!!!
It worked well for me. I at first tried actual snap ring pliers but there was too much flexing. Getting the bits far enough in the teeth of the channelocks stopped all flexing.
Good luck!
