For sale is an Armalite M15A4. It comes with a Armalite front sight post and a LMT TACTICAL ADJUSTABLE REAR SIGHT (NSN: 1005-01-548-5193) Armalite no longer makes this specific rifle. I am the original owner and it has been a safe queen for the past 14 years I have had it. I'd say about 200 rounds through it over the years. 
I insist on a firearm transfer so we will have to meet at a local gun shop. Cash Only.