Smith & Wesson M&P-15, 5.56mm cal. semi-auto rifle.  Serial #SM50579.  Excellent condition.  16" barrel, with bird cage style flash hider, has a 1/9 twist, excellent bore, no sights.  Full top length Pic style rail.  98% black finish on the barrel and upper receiver, 90% FDE finish on the lower receiver with edge wear.  FDE round composite forearm with left side and two lower rails for your favorite light or laser.  BCM Gunfighter bolt charging handle. Black textured composite Magpul pistol grip and six position stock.  No magazine.