SureFire HUBFA556 Fast-Attach Hub 5.56mm 1.375×24

Description

The SureFire Fast-Attach Hub converts 1.375×24 thread-pattern HUB suppressors and accessories to quick-detach compatibility with SureFire SOCOM Fast-Attach muzzle devices. It indexes on the built-in slot of the muzzle adapter and secures with a lock ring for a repeatable, tool-free connection. Precision-machined to match SureFire suppressor back-section dimensions, the hub is manufactured in the U.S.A. from heat-treated 17-4 stainless steel with a black nitride finish for long service life. The Fast-Attach Hub is not an NFA device.

Key Specifications

• The thread pattern is 1.375×24.
• The product length is 2 inches.
• The finish is Nitride.
• The listed caliber compatibility is .223 REM/5.56 NATO.
• The model designation is HUB Suppressor Muzzle Adapter.
• The product type is Adaptor.
• The listed make/model is AR-15.

Designed to add Fast-Attach Quick-Detach capability to existing HUB suppressors and accessories, this hub provides a precise, durable interface with SOCOM muzzle devices while minimizing setup time in the field. Its stainless construction and nitride surface treatment prioritize longevity and consistent alignment for routine use and maintenance.