I don't think the pistol can. I know that Tiburious makes rifles that work the same way, but I don't think you can buy the pistol and then a rifle body.
Well i'd take his "almost positive" over my "I think". Like I said, I don't know. But it just makes more sense to me to buy the rifle and then take the barrel and stock off to make it into a pistol... just me though.
I thought it would be cool. Im looking into the Arikon Overlord you suggested. How accurate is it? Im not looking for something with the best accuracy. It is just a side arm anyway. I would like something in the middle something that shoots stright and doesnt hook when I fire it.