Dead Air Armament Sandman-K, Rifle Suppressor, 7.62MM, Stainless Steel, Cerakote Black Finish, Includes Mount SMK762 INTRODUCING THE SANDMAN-K. Sharing all of the features of the Sandman-S and Sandman-L" while adding only 2.9" to your muzzle. The K has the class leading solid weld Stellite(R) baffle core and detachable front cap" just like the rest of Dead Air's Sandman Series. The exterior is finished in Cerakote(R) for ultimate durability. CALIBER RATING Up to .300 RUM ENERGY RATING 4200 ft lbs BORE DIAMETER .30 caliber LENGTH 5.4 inches DIAMETER 1.5 inches WEIGHT 12.8 ounces MATERIALS Cobalt 6 Baffles and 17-4 PH Stainless Steel Welded Core, Stainless Steel Tube FINISH Black or FDE CerakoteA(R) body, Nitride attachments USAGE Professional-grade heavy-duty use MSRP $899 BARREL RESTRICTIONS None FULL AUTO RATED Yes PART NUMBER SMK762 PATENT NO. 11441867