The JMAC 360HD X37 HUB Muzzle Brake in 1/2×28 shoulder mount (JMAC part no. 360HD-28S-X37) is a recoil reduction device with a direct-thread HUB 1.375-24 suppressor interface. This 1/2×28 version is a shoulder mount made for AR-15 and 9mm PCC hosts. Because the suppressor threads straight on, it skips the QD system and extra adapters, which saves weight, length and cost. It is made from 17-4 PH stainless steel with three sacrificial baffles ahead of the suppressor, and JMAC lists it as needing no timing and having no barrel length restriction.

Key Specifications

• Thread size is 1/2-28 shoulder mount, made for AR-15 and 9mm PCC hosts with 1/2-28 threads.
• Weight is 3.47 ounces, a figure worth knowing when you balance a suppressed rifle.
• The suppressor mount is HUB 1.375-24, a direct thread that needs no QD adapter.
• Construction is 17-4 PH stainless steel with a QPQ black nitride finish for corrosion and erosion resistance.
• No timing is required and there is no barrel length restriction, per JMAC.

Frequently Asked Questions

What does the 1/2×28 JMAC 360HD X37 fit? JMAC lists this version as a shoulder-mount application for AR-15 and 9mm PCC hosts with 1/2-28 threads. The facemount 1/2-28 version is a separate listing.

What suppressors does the JMAC 360HD X37 mount? The X37 has a direct-thread HUB 1.375-24 interface, which JMAC says is compatible with a wide range of suppressors and devices that use the popular HUB pattern. It removes the need for QD systems and extra adapters.

Buy the JMAC 360HD X37 HUB Muzzle Brake, 1/2×28 Shoulder Mount

Thread a HUB suppressor straight on, or run it as a brake on its own. Order it through AR muzzle devices and it ships fast from our Lubbock, Texas gun shop.