What it is worth is between you and any potential buyer. I am shocked at the prices even low end guns are bringing right now. If my personal convictions did not prevent it, I would have made about $10K by now and in a few weeks "probably" be able to replace it all for about $3K. If you put $400 in it (guess) I would say at $800 for the right desperate person. Slap a $500 upper on it, now you are looking at maybe $2.5K. Add 3 loaded PMags and a zombie sticker, probably $3k.