360HDM - 5/8" x 24 S - HUB Micro - JMac Customs

360HDM - 5/8" x 24 S - HUB Micro - JMac Customs 360HDM - 5/8" x 24 S - HUB Micro - JMac Customs JMAC-360HDM-30S-X37 Shoulder Mount No Timing Required Optimized for short-barreled firearms Flash Management 360HDM - 5/8" x 24 S - HUB Micro - JMac Customs.  Constructed from 17-4ph stainless steel, the 360HD is built to withstand heavy extended use. This recoil reduction device required no timing and is optimized for short barreled firearms. The X37 Series Muzzle Brake combines the recoil mitigation of JMac Customs RRD muzzle brakes and features a direct thread mount compatible with a wide range of suppressors and devices with the popular HUB interface 1.375-24.