5.56/223 AR-15 M4 Style Lower Receiver: Stag Arms Factory Trigger Group Sling Mount, Buffer Tube Upper: Dave Selvaggio Arms (DSA Inc.) 16" 1/7 Twist Chrome Lined Barrel A2 Front Sight Post BCG & Charging Handle Forward Assist I only have about 5 rounds through the upper (thats what happens when you leave your mags at home). Ran a Bushmaster Match Upper prior to that. This rifle is ready to rock and roll, fully functional. All you need is a butt-stock. Asking $600. Best offer.