360 14-1LH Facemount X37 HD - JMac Customs

360 14-1LH Facemount X37 HD - JMac Customs 360 14-1LH Facemount X37 HD - JMac Customs RRD-360HD-14F-X37 14-1LH Threads 1.49” Overall Length X37 - 1.375-24 External Threads 10mm Bore 17-4ph Stainless Steel Black Nitride Does not require timing 360 14-1LH Facemount X37 HD - JMac Customs. The RRD-360HD is designed specifically with short barrels and high pressures in mind! Due to excess pressures and gasses associated with rifle calibers in short-barreled firearms, a barrel length restriction was put in place for many of our popular devices. To remedy this, JMAC has taken their 360 design and reinforced the device by adding additional material where it's needed and removing material in some areas to cut down on size, and weight. The X37 Muzzle Brakes combine the effective RRD muzzle brake design and a direct thread mount for several popular suppressors as well as our BDS-37 and BDS-37-EXT blast shield! This allows you to leave the muzzle device installed and simply thread the suppressor over! Reduces weight, length, and cost compared to QD systems. Direct thread is also the preferred mounting method for accuracy!