I have an AR15-A@ with a 20" Krieger barrel and a leupold 2.5-8 power scope and a MagPul PRS stock.Gun is a tack driver.What I want to do is take the MagPul stock off the A2 and put it on a Ruger RPR.My question is What stock should I get to replace the Magpul.Either fixed or collapsable doesnt matter all though I favor collapsable.The stock will need to have an adjustable cheek weld since the scope is mounted atop the A2 handle.Any help is appreciated.I want to keep the purchase of this stock below what a new Magpul would cost.

Very good suggestion Mike. That would be what I would choose to do with that setup. Get the A2 stock assembly along with a PRO or Delta cheek piece. Between getting an A2 stock assembly and the cheek piece, you can keep it under $100. Here is a link to White Oak Armament. I bought my A2 stock assembly from them. Good quality stuff.

http://www.whiteoakarmament.com/xcart/product.php?productid=17592&cat=282&page=1