DS Arms AR-15 5.56mm cal. Upper Assembly.  Excellent condition.  20" barrel has 1/7 twist, excellent bore and bird cage style flash hider.  No sights.  Has a DS Arms marked front barrel band with a short picatinny style rail and also has a DSA marked upper receiver picatinny style rail.  99% black matte finish.  Black lined round ventilated polymer hand guard.  Comes with a complete unmarked bolt assembly.  Near new condition.  Can ship directly to you.