(85196) This is a used DSA Inc ZM4 Mid-Length AR-15 semi-automatic rifle chambered in 223/5.56 Nato. It has 1:9 twist, a Magpul flip up rear sight, fixed front sight post, 16- Nitride treaded fluted barrel, 6-position collapsible stock, and 30+1 capacity. All Parts US Made. Very minimal usage wear. Excellent condition.