DON'T TRASH IT! Convert Your Old Suppressor to the Modern HUB/Plan B Mount

Published on November 27, 2025
Duration: 17:46

This guide details the professional process of converting a legacy suppressor, like the Dead Air Sandman-K with a KeyMo mount, to the modern HUB (1.375x24 TPI) mounting standard. Performed by Scott's Silencer Service, the modification involves precision machining, TIG welding, and rigorous quality control to ensure proper alignment and thread integrity. The result is a modernized suppressor with increased mounting versatility and potential weight savings, extending the life of older NFA items.

Quick Summary

Professional gunsmiths can convert legacy suppressors to the modern HUB (1.375x24 TPI) mounting standard. This process involves precision machining, TIG welding, and rigorous quality control to ensure proper alignment and thread integrity, enhancing compatibility and potentially reducing weight.

Chapters

  1. 00:00The Problem: Legacy Mounting Systems
  2. 01:48Introduction to Scott's Silencer Service
  3. 02:57Disassembly and Machining Process
  4. 04:31HUB Adapter Integration
  5. 05:53Welding and Final Threading
  6. 06:14Quality Control and Alignment
  7. 07:57Finishing and Cerakote
  8. 08:51HUB Compatibility Demonstration
  9. 11:45Final Results and Weight Savings
  10. 14:56Weight Comparison Data

Frequently Asked Questions

What is the HUB mounting standard for suppressors?

The HUB mounting standard, also known as Plan B, uses a 1.375x24 TPI thread pattern. This universal standard allows for greater compatibility between various suppressor manufacturers and muzzle devices, making it a popular choice for modern firearm setups.

Can I convert my old suppressor to the HUB mounting system?

Yes, legacy suppressors can often be converted to the HUB standard through professional gunsmithing services. This process typically involves precision machining to remove the old mount and TIG welding a new HUB interface, followed by re-threading and finishing.

What are the benefits of converting to a HUB mount?

Converting to a HUB mount offers increased compatibility with a wide range of muzzle devices and adapters from different brands. It can also lead to weight savings and extend the usable life of a high-quality, but outdated, suppressor.

Who performs these suppressor conversion services?

Specialized NFA gunsmiths and shops with expertise in suppressor modification, such as Scott's Silencer Service, offer these conversion services. They utilize precision machinery like CNC lathes and TIG welders to ensure accurate and safe modifications.

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