Nice username.
I don't know if this is relevant to you, but last year I tried about a half-dozen different plastic clicky 0.5mm gel ink pens to replace the Pilot G2s that I've been using. I had the same problem - the clip would snap off far too easily. I tried a couple Zebras, a Uniball, and a couple Pentel. The Zebra Sarasa was mediocre, but stronger than the Pilot G2. The Zebra Sarasa Clip (0.4mm) is garbage - it has a spring loaded clip that is too fragile and really sucks. The Uniball is OK, better than the Zebra Sarasa, but the 0.38mm tip is too pointy to write smoothly. The winner is the Pentel Energel. The plain, cheaper one. There's a "fancier" one, but it sucks because the body will split at the threads. It also has a needle tip, which I like, and it writes great. It's plastic, boring, and has the strongest clip I've found on an inexpensive plastic gel pen.
It's the one up front in this pic (not my pic, found it on the web).
The middle one is the one that's crap. The one behind is metal bodied. I have one somewhere, and it's definitely nicer than the other 2 (but not expensive feeling). I haven't used that one much, because I prefer the lighter weight of the plastic one when it comes to a gel pen. I do like a heavier one if it's a ballpoint though.
I bought an "Everyman" pen, and while it's well made it does NOT fit the Pilot G2 in refills like advertised.
