This is a used Sig Sauer M400-SDI X AR-15 rifle chambered in 5.56 NATO. It features a 16-inch barrel with a 1/7 twist, 30-round magazine, compensating-flash hider, M-LOK handguard, skeletonized foregrip, ambidextrous controls, 2-stage trigger, mid-length gas system, and Magpul MOE SL collapsible stock. Overall, this rifle is in good condition with normal use wear on the receiver. Bore condition is good with crisp rifling. This would be a good choice for target shooting. Buy online today!