So I was doing a quick search on the forums and there was a guy asking about Meprolight M21's earlier and he didn't get any responses. So I'll start it off again. Does anyone have or use a Meprolight M21? I'm interested in picking one up for use on my AR or possibly on my C93, depending on how much I like it.

Right now I'm loving my EOTechs but I'm wondering if I shouldn't branch out a little more.

They offer some different reticles, namely the open-X pattern and the amber triangle (not quite similar to an ACOG) that I've never used before, does anyone have first-hand experience with these?