I'm looking for a AR15 stock that matches this design. The only other I could find was the AGP folding stock for 22LR ARs. Here's the link.  http://www.agparms.com/agp-arms-ar-15-folding-stock/
Will that fit a Ruger 556?
If anyone knows a model that looks identical to this, folding or not, for normal AR15's..please forward that information. Greatly appreciated!

That would not work on your Ruger 5.56 AR15, as the bolt carrier travels back into the receiver extension upon cycling.  That stock is made for .22LR rifles which have smaller bolts that do not travel into the extension.



If you want a folder, look at the LAW folding stock adapter, turns your normal stock setup into a folder, but you cannot fire it when folded.



If you can give up the folding aspect and just want a fixed stock that looks similar to what you posted, look at the ACE Skeleton Stock.

Magpuls fixed carbine stock looks similar  https://www.magpul.com/products/moe-fixed-carbine-stock-mil-spec