FAXON STAINLESS STEEL EXTENDED PLAN B TO HUB ADAPTER

FAXON STAINLESS STEEL EXTENDED PLAN B TO HUB ADAPTER

Faxon
SKU:
FF-MD-SIL-HUB-PB-03
|
UPC:
810209951443
$65.00
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Current Stock:
Description

 

 

FAXON STAINLESS STEEL EXTENDED PLAN B → HUB ADAPTER — 17-4 PH

Extended-length adapter for improved clearance and reach with Plan B muzzle devices. The Faxon Extended Plan B → Hub Adapter (FF-MD-SIL-HUB-PB-03) is precision-machined from 17-4 PH stainless steel and designed to provide a secure, repeatable interface from MuzzLok® Plan B Compatible devices (and similar Plan B muzzle devices) to hub-mount suppressors such as Faxon HARMONIX® and CORESYNC®. The extended length offers additional reach for better suppressor positioning and clearance on certain setups.

Key Features

  • Adapter Type: Extended Plan B → Hub Mount Adapter
  • Material: 17-4 PH Stainless Steel (H1025)
  • Precision Threads: 1.375-24 UNS-2A (Hub) & 29/32-24 UNEF-2B (Plan B)
  • Finish: Nitride
  • Extended Length: Provides additional reach for improved suppressor clearance and positioning
  • Compatibility: Interfaces Plan B muzzle devices to hub-mount suppressor hubs (ex. HARMONIX® & CORESYNC®)
  • Origin: Designed and manufactured in the USA by Faxon Firearms

Why Use the Faxon Extended Plan B → Hub Adapter?

This extended adapter allows shooters to take advantage of the fast, repeatable timing and secure lockup of MuzzLok® Plan B-style (and similar) muzzle devices while attaching modern hub-mount suppressors. The added length improves clearance and positioning on certain rifle configurations, maintaining timing, alignment, and the robust mechanical connection required by hub-mount systems.

Benefits

  • Extended reach: Provides additional length for better suppressor clearance and positioning on select setups
  • Repeatable mechanical interface: Maintains timing and alignment between Plan B devices and hub mounts
  • Precision thread geometry: Minimizes wobble and ensures concentricity for consistent performance
  • Durable construction: 17-4 PH stainless for corrosion resistance and long service life

Technical Specifications

Part Number FF-MD-SIL-HUB-PB-03
Material 17-4 PH Stainless Steel (H1025)
Hub Threads 1.375-24 UNS-2A
Plan B Threads 29/32-24 UNEF-2B
Hex / Grip Flats 1.031" hex
Finish Nitride
Country Made in USA — Faxon Firearms

Quick Installation / Use Notes

Always follow safe firearms handling practices. Ensure the firearm is unloaded and safe before installing or removing muzzle devices or adapters.

  1. Install and time your Plan B muzzle device per the device manufacturer's instructions.
  2. Thread the Extended Plan B → Hub Adapter onto the Plan B device or timing nut until hand-tight, then torque to adapter/suppressor specs.
  3. Attach the hub-mount suppressor to the adapter hub according to the suppressor manufacturer's instructions (HARMONIX® / CORESYNC® when applicable).
  4. Verify concentricity, clearance, and point-of-impact. Re-time if required for your rifle/suppressor setup.

FAQ

What does the Extended Plan B → Hub Adapter do?
It provides a precision, extended-length mechanical interface that lets MuzzLok® Plan B Compatible (and similar Plan B-style muzzle devices) connect to hub-mount suppressors while preserving timing and alignment, with added clearance for certain setups.
What material is the adapter made from?
17-4 PH stainless steel for strength, durability, and corrosion resistance.
What threads does it use?
Primary: 1.375-24 UNS-2A (HUB). Plan B: 29/32-24 UNEF-2B.
Is it compatible with Faxon HARMONIX® / CORESYNC®?
Yes — it is designed to interface with hub-mount suppressors including Faxon’s HARMONIX® and CORESYNC® lines when the correct hub configuration is used. Confirm suppressor/hub part numbers for full compatibility.
Any special installation torque?
Follow the adapter and suppressor manufacturer's torque and installation instructions.
Where can I get help?
Contact Faxon Firearms Customer Service at customerservice@faxonfirearms.com.

Notice: MuzzLok® is a Faxon Firearms trademark.
Disclaimer: Faxon Firearms components are designed for compatibility with industry-standard Plan B-style and 1.375-24 UNS (HUB) mounting interfaces. Always confirm dimensions and fitment before installation as tolerances may vary between manufacturers. Some suppressor manufacturers may not honor their warranty when third-party adapters or mounting systems are used. Verify compatibility and warranty terms with your suppressor manufacturer before installation or use.

Trademark attribution: “Plan B” is a trademark of Q, LLC. Faxon Firearms is not affiliated with, endorsed by, or sponsored by Q, LLC. All other trademarks are the property of their respective owners.

 

 

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