Adafruit IRIS plus ring clip remixed

CLIP:

I made the outside hook less tall to have a better fit.
I also added a 2mm high rib to make it stronger.

2 versions:
-one with a integrated, easy to cut support.
-another one with no support at all.

the fitting is very good.

PROP GUARD:

I just added a flange in order to get a better grip on the clip.
the result is a very strong and steady assembly, for almost no additional weight.