A3 Flatttop, 16" Oly barrel, 5.56mm threaded barrel with flashhider, 4-rail gas block NO SIGHTS. comes with bolt/carrier/charging handle. Fired about 300 rounds. It is in good shape, but has a couple scratches (very minor) on the barrel from shipping/storage. Picture available. email me or call my cell phone 805-760-5530. $350/offer shipped. I will be out of town (I'm moving, hence getting rid of stuff I don't shoot) this weekend, so CALL me first, I may not be able to check email.