Daniel Defense DD5 V4, Semi-automatic Rifle, AR, 6.5 Creedmoor, 18" CHF Barrel, 1:8" Twist, 5/8X24" Thread Pitch, Matte Finish, Brown, Daniel Defense Furniture, M-LOK Rail, Fully Ambidextrous Controls, Grip-N-Rip Charging Handle, 20 Rounds, 1 Magazine 02-158-20057-047