Thanks for the repeat of everything I just posted. Lol
Magwell grips are not worth their weight or the trouble installing them. The Mako one requires extensive fitting.
A magwell grip is fine for high power or Camp Perry style shooting. That isn't what the 15-22 is suited for.
Having the support hand further forwards allows you to move between targets quicker and control what muzzle rise there is on a .22. Pretty much what the 15-22 excells at.
If you find you absolutely need to hold it that close you can grab the lower, at the magwell.
There already is an ATF clarification letter saying magwell grips on AR pistols are okay, as they also serve a function as a magwell flare for easier mag insertion.
Like I said, already looked into it, already know it's okay to do, all I am asking is which ones people have found to work on their 15-22's, hoping to find one that did not require modification.