Anyone know of any parts suppliers (Non factory stuff, like a metal guide rod, better slide spring, etc) is there a market for it at all? I've been all over google but can't find much of anything. Anyone had any luck finding stuff?

Same with mags, anyone know a mag source other than through s&w, I've got 2 and 2 more coming from there rebate... but I'd like to pick up a couple more checked cheaper than dirt but mostly just factory stuff.