>>5686445no it's actually a pic from ebay. my retaliator has the same pump kit but i don't have the stock and barrel attachements.
the stock is a generic air soft stock connected by a nerf compatible buffer tube.
you can buy the pumpkit and the buffer tube from this guy on ebay:
http://www.ebay.com/sch/nerfrightarm/m.html?_nkw=&_armrs=1&_ipg=&_from=or directly from the manufacturer in china on taobao.
the pic is my retaliator, which looks tacticool enough for me.