The Smith & Wesson M&P15 Sport III is a reliable semi-automatic rifle chambered in .223 Rem/5.56 NATO with a 16-inch threaded barrel and durable black finish throughout.Smith & Wesson M&P15 Sport III Semi-Automatic Rifle.223 Rem/5.56 NATO caliber with 30+1 capacity16" threaded barrel with 1:8" twist rateA2 flash suppressor and thumb safety6-position adjustable stockAluminum receiver with black metal and stock finishOverall length: 35" Weight: 6.12 lbsBuilt for reliability and versatility this rifle is ideal for sporting applications training and recreational shooting with its proven M&P15 platform and quality Smith & Wesson construction.