The Sport III is the next generation of Smith & Wesson's iconic AR line that modernizes the platform with the latest advances in technology. The rifle's gas system has been updated to a mid-length for a softer recoil impulse and reduced parts wear. A free-floated M-LOK handguard and low-profile gas block has also replaced the classic polymer clamshell handguard and front sight base to allow for easy customization right out of the box. This model features an all-black finish with a 16-inch barrel. One 30-round magazine is included. Guns.com Full Review of the M&P 15 Sport III