Barrett MRAD SMR, Bolt Action Rifle, 308 Winchester, 17 Barrel, 2 Port Muzzle Brake, Cerakote Finish, Tungsten Gray, Fixed Stock, Adjustable Cheek Rest, Magpul MOE Grip, 10 Rounds, 1 Magazine 18519 Designed with both precision and modularity in mind, the MRAD is equally at home on the range or on duty. Its monolithic upper receiver is machined from 7000-series aluminum, including a full-length M1913 Picatinny top rail with built-in taper for long range precision.