This is an earlier blackwater ar15. There is very little info online regarding these rifles and what I have found is that these are very rare. From reading only around 400 made and this one's serial is 2xx. Has original A.R.M.S rear sight. Values around 800$ . Rifle hasn't been fired much at all and is in excellent condition. Open to trades. No silver, watches, pigs, go carts or anything other than firearms. Union county 352 451 751four.