This new DPMS 300 Blackout rifle fires the .300 AAC round. It has a 16" chrome lined barrel with an overall black finish. This semi-auto rifle has a collapsible stock, a flattop receiver, a free floating quad rail, and a flash hider (/QD suppressor adaptor). The forearm is drilled in multiple positions allowing you to change out where your rails are placed. This very cool rifle comes with manual, lock, sling, and one 30 round magazine.