like a a few other projects, we are still behind on, us moving last fall and my health issue this winter has not helped as far as getting things done as quick as we would like.
but theover sized mag button, we are planing to do would be something that would be drilled and taped to the factory button.
if we did the whole new unit inc the new over sized button you would be looking well over $130. V about $30/40.
That said if you are In a rush, ospry defense in BC makes one, its a little thin and not what I would call rough duty gear, but again like the GG&G charging handle I think it aimed more at 3G nation shooters